Nu Horizons Electronics - Portal March 2010 - Asia Pacific

Transcript

Focus on Featured Products POWE R XL280 Series Power Supply Family N2Power’s latest small, high efficiency XL280 AC -DC Series power supply family again leads the power density race. Our advanced technology yields a very small footprint, reduces wasted power, and offers the highest power density in its class... more on page 9. In This Issue: APAC Edition March 2010 D C -D C C onverters NiQor High Voltage DC/DC Converters High input voltage, non-isolated brick dc-dc converters The high input voltage NiQor® family of dc-dc converters offer a unique solution for converting high-powered, variable voltages to a wide range of output voltages. The converter is a non-isolated buck-cascaded-boost regulator, which employs synchronous rectification to achieve extremely high conversion efficiency. Suitable for use in IBA or to provide a regulated output voltage from a battery source or other variable voltage source. Can be configured to Buck the input voltage down or Boost the input voltage up using a single external resistor. Features OPERATIONAL  Efficiency 93-95% typical at full load  Wide input voltage ranges:  9-20V (NQ20); 9-40V (NQ40); 9-60V (NQ60)      Maximum input/output currents up to 40A Suitable for use in Intermediate Bus Architectures On-board input and output filtering No minimum load requirement Remote sense and wide output voltage trim PROTECTION/CONTROL  Input under-voltage lockout (UVLO)  Output current limit (OCP) and short circuit protection  Output over-voltage protection (OVP)  Thermal shutdown (OTP)  Output voltage trim BATTERY CHARGING Key features of “C” version:  Provides the power conversion platform for battery charging  Output current limit is externally controlled for constant-current charging  Current can be set with an external resistor or an active circuit  Current analog signal provided for instrumentation and control functions  Ideal diode output stage with zero back-drive currents prevents discharge of battery when not charging  Output voltage set-point is independently controlled through trim pin  Unit will smoothly transition between current and voltage modes as charging cycle needs charge SAFETY  TUV certified to EN60950-1 for all participating countries  Meets 2006/95/EC and 89/336/EEC directives  Meets UL94V-0 flammability requirements MECHANICAL  Industry standard pin-out configurations  Industry standard footprints:  Eighth Brick: 0.90” x 2.3” x 0.50”  Quarter Brick: 1.45” x 2.3” x 0.50” 1/8 Brick 1/4 Brick Input Voltage Range Vdc Output Voltage Vdc Maximum Input/ Output Current A 10A Typ. Efficiency (% load) 50% 94 94 100% 93 93 94 94 94 94 95 95 95 Derated Current @ 55 °C, 200LFM Part Number * • • • • • • • • • 10A 20A 40A 8A 15A 30A 5A 10A 20A NQ20(W/T)20EGC10xxx NQ20(W/T)20ETC20xxx NQ20(W/T)20QGC40xxx NQ40(W/T)40EGC08xxx NQ40(W/T)40ETC15xxx NQ40(W/T)40QGC30xxx NQ60(W/T)60EGC05xxx NQ60(W/T)60ETC10xxx NQ60(W/T)60QGC20xxx 9-20 0-20V 20A 40A 8A 95 95 95 95 96 96 96 9-40 0-40V 15A 30A 5A 9-60 0-60V 10A 20A * Options available – C: current trim, W: buck/boost, T: buck only. 2 For more information, including pricing, availability, datasheets and samples (if available), please visit http://ap.nuhorizons.com/FeaturedProducts HEALTHCARE POWER SUPPLIES Em bedded P ow er Emerson Network Power – Embedded Power is a World Leader in Healthcare Power Supply Products The Embedded Power business of Emerson Network Power has been designing and developing power supply products for the healthcare industry for over 35 years. Uniting the well-known Astec and Artesyn brands, Emerson offers thousands of standard, modified and custom power supply products. As a trusted partner with the world’s top medical imaging and in-vitro diagnostics companies, Emerson understands the medical device customers’ quality system requirements in design, purchasing and production controls as well as post-market surveillance. Medical Applications Bio Life Sciences        Immunoassay systems In-Vitro diagnostics Microbiology Centrifuges Clinical chemistry Osmometers PCRs Dental      Gamma imaging systems CAD/CAM systems Oral care equipment Digital radiography X-ray machines Imaging       Emerson’s extensive AC-DC power supply portfolio covers a 3 to 4,920 W power band while the DC-DC converter range covers a 3 to 700 W power band. One of the most popular products for healthcare equipment is Emerson’s iMP Series modular ACDC power supplies, which has medical approval to EN6061-1 Type B. A range of hardware modules gives designers millions of combinations to meet their individual needs and appropriate agency requirements without further certification. It can also be digitally configured, monitored and controlled using a graphical software interface. Emerson also offers a range of external power adapters with medical approval to EN6061-1 Type B, many of which are also IEC 60950-1 safety certified and applicable to in-vitro diagnostic applications. Ultrasound scanners Computed Tomography (CT) scan Positron Emission Tomography (PET) Magnetic Resonance Imaging (MRI) Nuclear medicine X-ray machines Laboratory      Chemical analysis equipment Mass analyzers Lab automation Sterilization Electron microscopes iMP Series Power Supply Medical  Ophthalmic Equipment  Surgical systems  Ophthalmoscopes  Surgical/Medical Devices  Surgical equipment  Patient monitoring  Patient therapy iMP Series Digital Software For more information on Healthcare Power Supplies go to www.HealthcarePowerSupplies.com For more information, including pricing, availability, datasheets and samples (if available), please visit http://ap.nuhorizons.com/FeaturedProducts 3 Power (DC-DC Converters) LGA C-Series High Density Non-Isolated Board-Mount Power Converters Small - Reliable - Efficient CONVENIENT DESIGN The LGA C-Series high-density power converters are packaged in a 16.26 x 16.26 mm outline and utilize an identical footprint for all models (3A, 6A, 10A and 20A) that provides designers a convenient power migration path as system requirements change. The power converter’s ultra compact Land Grid Array (LGA) packaging enables a uniform, low profile form factor ideal for space restricted boards. The LGA C-Series can be mounted on either side of many circuit boards and offers designers an opportunity to employ a variety of conductive cooling techniques via either surface. BEST-IN-CLASS FEATURES Fully equipped with a variety of best-in-class features including under-voltage lockout, differential remote sense, power good signal, output margining and short-circuit protection, the LGA C-Series ensures a high power reliable unit at a competitive price point. LGA10C-00SADJJ MINIMAL OUTPUT DERATING The LGA C-Series delivers high efficiency of 92%, typical at full load under nominal conditions. Its ultra compact packaging and low profile construction allows for bilateral heat transfer and low apparent net thermal resistance once mounted on a typical circuit board. These enable the LGA modules to operate up to 85 °C max ambient temperature with almost no derating on the output for most versions. Various external heatsink accessories are also available if extended temperature operations are desired. Features  3A, 6A, 10A & 20A modules  15 - 100 W scalable power  16.26 x 16.26mm package  Low Profile: 3.27mm typical  92% typical efficiency  RoHS compliant Benefits  Identical footprints for easy power migration path  Flexible space management  Compatible with variety of input bus voltage  High power reliability REDUCING MODULE TYPES With a wide adjustable output range from 0.59 to 5.1 Vdc through external resistor trimming, the LGA C-Series reduces the number of module types needed to support multiple applications. Applications  Distributed Power Architecture  Battery Powered Applications  Enterprise Networks/Servers  Storage/Memory/µProcessors  FPGA, ASIC, DSP Power Applications  Telecom Equipment  Industrial Equipment Model LGA03C-00SADJJ LGA06C-00SADJJ LGA10C-00SADJJ LGA20C-01SADJJ Output Voltage Range 0.59 - 5.1 VDC 0.59 - 5.1 VDC 0.59 - 5.1 VDC 0.59 - 5.1 VDC Input Voltage 3 - 13.8 VDC 3 - 13.8 VDC 3 - 13.8 VDC 4.5 - 13.8 VDC Maximum Current 3A 6A 10 A 20 A Regulation Line ± 0.2% ± 0.2% ± 0.2% ± 0.2% Load ± 0.5% ± 0.5% ± 0.5% ± 0.5% Visit www.PowerConversion.com/LGA for more information 4 For more information, including pricing, availability, datasheets and samples (if available), please visit http://ap.nuhorizons.com/FeaturedProducts Finding the right Power Inductor for your DC/DC Converter in 30 seconds? Wurth Electronics Midcom has released its new and improved inductors selector software tool: WE Inductor Selector. This design tool allows you to find the right inductor for your DC/ DC converter within seconds. The program offers a search by the general parameters of the desired inductor—for example, min/max dimensions, inductance values, current capability and core materials. Additionally, the selection tool allows a search by parameters of the DC/DC Converter. The program supports Buck, as well as, Boost Converters, and now even SEPIC Converter applications. After entering parameters into the design tool, suggestions for the right inductor(s) for your application appear. Lastly, there is a possibility to order free samples or download the specification sheet with one click. FREE DOWNLOADS AT: www.we-online.com/inductorselector The inductor selector is part of Wurth’s new Toolbox section on the website. Besides the aforementioned Inductor Selector, the Toolbox contains:  WE-Flex Designer Tool: Design Tool for flyback transformer applications  IC and Cross Reference Searches  Application Guides  Eagle component library  …and much more Visit the Toolbox today at www.we-online.com/toolbox P ow er I nductor You think it’s impossible? Not anymore, with our new, free downloadable Wurth Electronics Midcom Inductor Selector. Features  Large inductor data base with over 1500 products  2 search functions available:  by parameters of inductor  by parameters of DC/DC Converter  Supports Buck, Boost, and SEPIC converter applications  Samples and specification sheets only one click away  Living design tool --> regular updates with new products Benefits  All-round inductor design solution for DC/DC converters  Save time & resources For more information, including pricing, availability, datasheets and samples (if available), please visit http://ap.nuhorizons.com/FeaturedProducts 5 P ow er Managem ent XRP7708 - Quad Channel Digital PWM Step Down Controller A complete power management solution in one IC that is fully programmable Exar’s XRP7708 completes the Power XR family of multi channel fully (re)configurable 4-Channel DC to DC digital PWM controllers by providing an 8A per channel optimized pin and function compatible option to the existing 5A and 15A solutions. This family of highly configurable digital power step-down controllers more intelligently manage today’s power systems with 4 independent digitalcontrol loops while integrating an on-board power LDO. These power system controllers are fully addressable and configurable via an I²C interface for monitoring, control and management of DC to DC point of load power conversions.. The XRP7708 is a quad-output pulse-width modulated (PWM) step-down DC-DC controller with a built-in LDO for standby power and GPIOs. The device provides a complete power management solution in one IC and is fully programmable via an I2C serial interface. Independent Digital Pulse Width Modulator (DPWM) channels regulate output voltages and provide all required protection functions such as current limiting and over-voltage protection. Each output voltage can be programmed from 0.9V to 5.1V without the need of an external voltage divider. The wide range of the programmable DPWM switching frequency (from 300 KHz to 1.5MHz) enables the user to optimize between efficiency and component size. Input voltage range is from 6.5V to 20V. Two controllers support a load of up to 5A, while the other two controllers support up to 8A. I2C bus interface is provided to program the IC as well as to communicate with the host for fault reporting and handling, power rail parameters monitoring, etc. The device offers a complete solution for soft-start and soft-stop. The startup delay and ramp of each PWM regulator can be independently controlled. The device can start up a pre-biased PWM channel without causing large negative inductor current. XRP7704 XRP7708 XRP7740 Single Input Voltage FETS/Inductance Power Supply 1 Power Supply 2 5A Power Supply 3 8A 15A Power Supply 4 5A 5A I²C Interface Digital PowerXR Controller FETS/Inductance FETS/Inductance FETS/Inductance Features  Pin/Function Compatible 4-Channel PWM Controllers  XRP7704: 4 x 5A Channels  XRP7708: 2 x 5A and 2 x 8A Channels  XRP7740: 2 x 5A and 2 x 15A Channels Applications  Multi Channel Programmable Power Supplies  Audio- Video equipments  Industrial & Telecom equipments  Processors and DSP based equipments  Digital Loop Control  On Board Standby Power LDO  On Board Gate Drivers  Up to 20V Single Input Voltage  0.9V Min. Programmable Output Voltage  Independent Channel (re)Configurability  I²C Controlled  RoHS Compliant, “Green”/Halogen Free 40-pin QFN package 6 For more information, including pricing, availability, datasheets and samples (if available), please visit http://ap.nuhorizons.com/FeaturedProducts P ow er Management XRP6840 - 4.3A Supercapacitor Flash LED Driver Industry leading controlled-current dual-cell supercapacitor charger and high power LED driver solution The XRP6840 is a controlled-current dual-cell supercapacitor charger and high power LED driver. Operating from a standard lithium-ion battery, the XRP6840 provides up to 4.3A of programmable Flash LED current and up to 600mA and 5.6V of programmable supercapacitor charging current and voltage. Architectured around a 2.4MHz tri-mode 1x, 1.5x and 2x charge pump, the XRP6840 charges the stacked supercapacitor to the programmed output voltage with no more than 600mA drawn from the battery. While charging, an internal active balance circuitry insures matching of the stacked capacitors’ voltages. A standard 2-line I2C serial interface allows the dynamic programming of LED currents in torch and flash modes, flash timeout, channel enable, gain control, capacitor charge voltage, and enable. The XRP6840 comes in a 2 and 3 channel version supporting respectively 440mA/2.15A per channel and 300mA/1.45A in torch/flash modes. The flexibility designed into the XRP6840 allows it to return the energy stored in the supercapacitor back to the main supply. This feature is useful if a low battery level is detected and extra energy is required to properly shut down the sytem or for surge power requirements. Features  Programmable 4.3A Flash LED Driver  Torch and Flash Modes 2 and 3 Channels Versions Applications  High Power Torch/Strobe/Flash LED  High Resolution Cameras  Generic High Power Lighting  High Power White LED Backlighting  Programmable Supercapacitor Charger  600mA Adjustable Charging Current  Programmable Supercapacitor Voltage  In-rush Current Control Active Voltage Balance Control  Tri-mode Charge Pump Architecture  1x, 1.5x, 2x Operation Modes  2.4MHz Switching Frequency  I²C Serial Interface  Thermal, Over Current and Output Short Protection  LED Short Detection  RoHS Compliant “Green”/Halogen Free 20-pin 4mmx4mm TQFN package Typical Application For more information, including pricing, availability, datasheets and samples (if available), please visit http://ap.nuhorizons.com/FeaturedProducts 7 P ow er Managem ent LT2940 - Power and Current Monitor Enables Board & System-Level Optimization The LT®2940 measures a high side current and a differential voltage, multiplies them and outputs a current proportional to instantaneous power. Bidirectional high side currents and bipolar voltage differences are correctly handled by the four-quadrant multiplier and push-pull output stage, which allows the LT2940 to indicate forward and reverse power flow. An integrated comparator with inverting and noninverting opencollector outputs makes the LT2940 a complete power level monitor. In addition, an output current proportional to the sensed high side current allows current monitoring. The current mode outputs make scaling, filtering and time integration as simple as selecting external resistors and/or capacitors. Load Monitor Alarms Above 60W ILOAD 6V TO 80V 20mΩ 2W 5V 1k LATCH CMPOUT LED ON WHEN PLOAD > 60W CMPOUT CMP+ PMON VPMON = PLOAD • 20.75 mV W kV = 1 12 PLOAD = VLOAD • ILOAD 24.9K GND IMON VIMON = ILOAD • 100 4.99k mV A V– LT2940 V+ 10.0k VCC I+ I– 110k 0A TO 10A LOAD + VLOAD – Monitor Output Level and Load Power 2.5 Features 80V 2.0 120 30V  Four-Quadrant Power Measurement 15V  ±5% Power Measurement Accuracy 10V VPMON (V) 96  1.5 to 80V High Side Sense,LED ONMax 4V 100V VLOAD = 6V 72 PLOAD (W)  Current Mode Power and Current Outputs  1.0 Output Bandwidth Exceeds 500kHzLED OFF  ±3% Current Measurement 60W ALARM Accuracy  6V to 80V Supply Range, 100V Max 0.5 24 48  Inverting and Noninverting Open-Collector 0 0 Comparator Outputs 10 12 14 2 0 4 6 8  Available in 12-PinILOAD (A) DFN (3mm × 3mm) and 12-Lead MSOP Packages kI = 20mΩ Monitor Output Level and Load Power 2.5 + VLOAD – VPMON (V) 80V 120 30V 15V 10V 1.5 VLOAD = 6V 72 LED OFF 48 60W ALARM 0.5 24 PLOAD (W) Applications  Board Level Power and Current Monitoring  Line Card and Server Power Monitoring  Power Sense Circuit Breaker  Power Control Loops  Power/Energy Meters  Battery Charger Metering LOAD 2.0 96 LED ON 1.0 k AD • 100 A mV 0 0 2 4 6 8 ILOAD (A) 10 12 14 0 8 For more information, including pricing, availability, datasheets and samples (if available), please visit http://ap.nuhorizons.com/FeaturedProducts N2Power Launches XL280 Series Power Supply Family Very small, high efficiency AC-DC supplies POWER SUPPLY DESIGN LEADER N2Power’s latest small, high efficiency XL280 AC -DC Series power supply family again leads the power density race. Our advanced technology yields a very small footprint, reduces wasted power, and offers the highest power density in its class. High efficiency mean reduced energy costs, greater return on your investment, greater reliability and longer product life. UNMATCHED POWER DENSITY With an overall height of just 1.35” and a 3” x 5.3” footprint, the XL280 Series boasts a power density over 13 watts per cubic inch. It is ideally suited for OEMs using the industry standard 1U chassis. Ten models deliver output voltages from 12V to 56V. HIGH EFFICIENCY IN A SMALL PACKAGE The XL280 Series delivers up to 90% efficiency. Our unique design reduces energy consumption and generates less heat. It requires little forced air cooling, decreases AC loading, increases reliability and economy of operation. Comparisons of efficiencies show that our supplies can reduce losses up to 50%. REPEATABLE QUALITY Each N2 power supply undergoes a complete functional test and a multi-hour burn-in to insure that every unit meets our stringent quality requirements. Each power supply design is also rigorously tested by UL and European agencies, with scheduled factory audits to ensure ongoing compliance. P ow er S upplies Features  280W AC-DC  12V, 24V, 28V, 48V, 54V and 56V models  3” x 5.3” x 1.35” footprint  Up to 90% efficient  Active current sharing for N, N+1  All outputs may be paralleled  Remote On / Off  5V standby supply  12V aux output Model # XL280-12 XL280-12CS Output V1 V2 V3 V4 Voltage +12 +12 +12 +5Vsb Regulation % +/-3 +/-5 +/-5 +/-5 Maximum Current (A) 23.3 5.0 1.0 1.0 Ripple & Noise (P-P) 120 mV 120 mV 120 mV 50 mV Benefits  Requires little forced air cooling  High power density: >13W / in3  Saves design space  Reduced power consumption  Increased reliability XL280-24 XL280-24CS V1 V2 V3 V4 +24 +12 +12 +5Vsb +/-3 +/-5 +/-5 +/-5 11.7 5.0 1.0 1.0 240 mV 120 mV 120 mV 50 mV Applications  Telecom systems  Security systems  Industrial automation  Gaming systems  Architectural lighting  Kiosks XL280-48 XL280-48CS V1 V2 V3 V4 +48 +12 +12 +5Vsb +/-3 +/-5 +/-5 +/-5 5.8 5.0 1.0 1.0 480 mV 120 mV 120 mV 50 mV XL280-54 XL280-54CS V1 V2 V3 V4 +54 +12 +12 +5Vsb +/-3 +/-5 +/-5 +/-5 5.2 5.0 1.0 1.0 540 mV 120 mV 120 mV 50 mV XL280-56 XL280-56CS V1 V2 V3 V4 +56 +12 +12 +5Vsb +/-3 +/-5 +/-5 +/-5 5.0 5.0 1.0 1.0 560 mV 120 mV 120 mV 50 mV For more information, including pricing, availability, datasheets and samples (if available), please visit http://ap.nuhorizons.com/FeaturedProducts 9 R egulator LTC3788/-1 - Dual Output, High Power 60V Synchronous Boost Controller Eliminates Heat Sink with 97% Efficiency The LTC®3788-1 is a high performance 2-phase dual synchronous boost controller that drives all N-channel power MOSFETs. Synchronous rectification increases efficiency, reduces power losses and eases thermal requirements, allowing the LTC3788-1 to be used in high power boost applications. A constant-frequency current mode architecture allows for paralleled output. The LTC3778 has a phase-lockable frequency of up to 850kHz. OPTI-LOOP compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. The LTC3788-1 features a precision 1.2V reference and a power good output indicator. A 4.5V to 38V input supply range encompasses a wide range of system architectures and battery chemistries. Independent SS pins for each controller ramp the output voltages during start-up. The PLLIN/MODE pin selects among Burst Mode operation, pulse-skipping mode or continuous inductor current mode at light loads. For a leadless 32-pin QFN package with additional features of adjustable current limit, clock out, phase modulation and two PGOOD outputs, see the LTC3788 data sheet. VIN 4.5V TO 12V START-UP VOLTAGE OPERATES THROUGH TRANSIENTS DOWN TO 2.5V VIN Features  Synchronous Operation for Highest Efficiency and Reduced Heat and Power Loss Efficiency Dissipation 3mΩ 4.7µF TG1 VBIAS INTVCC 4.7µF TG2 4mΩ 220µF vs Load 4.5V to  Wide Input Range: Current38V (40V Abs Max) and Operates Down to 2.5V After Start-Up 100 10000 90  Output Voltages Up to 60V 80  ±1% 1.2V Reference Voltage EFFICIENCY (%) 70 1000 POWER LOSS (mW) VOUT 12V AT 5A 1.25µH 0.1µF BOOST1 SW1 BG1 LTC3788-1 BOOST2 SW2 BG2 + – 3.3µH 0.1µF VOUT 24V AT 3A  RSENSE or Inductor DCR Current Sensing 60 100 40  Low Quiescent Current: 125µA 30 10 SENSE1+ SENSE1– 110k RUN1 SENSE2 SENSE2 50  100% Duty Cycle Capability for Synchronous MOSFET PGND 232k 220µF 12.1k 15nF 2.7k RUN2 VFB1 VFB2 PGOOD1 FREQ EXTVCC PLLIN/MODE ITH1 SS1 SGND SS2 ITH2 100pF 0.1µF 0.1µF 220pF  Phase-Lockable Frequency (75kHz to 850kHz) VIN = 12V 20 1 10  Programmable Fixed Frequency (50kHz to 900kHz) Burst Mode OPERATION 0  Adjustable Output Voltage Soft-Start 0.1 0.00001 0.0001 0.001 0.01 0.1 1 10 FIGURE 9 CIRCUIT VOUT = 24V 15nF 8.66k 12.1k 220µF  Power GoodOUTPUT CURRENT (A) Monitor Output Voltage  Low Shutdown Current IQ: <8µA  Internal LDO Powers Gate Drive from VBIAS or EXTVCC  Available in a Narrow SSOP Package or 5mm x 5mm QFN .5V TO 12V START-UP VOLTAGE THROUGH TRANSIENTS DOWN TO 2.5V VIN 4mΩ 220µF 100 Efficiency and Power Loss vs Load Current 10000 90 80 EFFICIENCY (%) 70 60 50 40 30 VIN = 12V 1 VOUT = 24V Burst Mode OPERATION FIGURE 9 CIRCUIT 0 0.1 0.00001 0.0001 0.001 0.01 0.1 1 10 OUTPUT CURRENT (A) 20 10 10 100 1000 POWER LOSS (mW) Applications  Industrial  Automotive  Medical  Military 3.3µH VOUT 24V AT 3A 232k 15nF 8.66k 12.1k 220µF pF 10 For more information, including pricing, availability, datasheets and samples (if available), please visit http://ap.nuhorizons.com/FeaturedProducts LT3990 - 60V, 350mA Step-Down Regulator with 2.5uA Quiescent Current and Integrated Diodes The LT®3990 is an adjustable frequency monolithic buck switching regulator that accepts a wide input voltage range up to 60V, and consumes only 2.5µA of quiescent current. A high efficiency switch is included on the die along with the catch diode, boost diode, and the necessary oscillator, control and logic circuitry. Low ripple Burst Mode operation maintains high efficiency at low output currents while keeping the output ripple below 5mV in a typical application. Current mode topology is used for fast transient response and good loop stability. A catch diode current limit provides protection against shorted outputs and overvoltage conditions. An accurate programmable undervoltage lockout feature is available, producing a low shutdown current of 0.7µA. A power good flag signals when VOUT reaches 90% of the programmed output voltage. The LT3990 is available in small, thermally enhanced 16-pin MSOP and 3mm × 3mm DFN packages. R egulator Ideal for automotive and industrial applications that need continuous output with ultralow power drain Features 5V Step-Down Converter VIN 6.5V TO 60V VIN OFF ON BOOST LT3990 EN/UVLO PG 2.2µF 392k f = 400kHz RT SW BD 22pF GND FB 316k 1M 22µF 33µH VOUT 5V 350mA Efficiency 1000 100 POWER LOSS (mW)  90 Ripple Burst Mode® Operation Low 80 VIN = IQ at  2.5µA 12V 12VIN to 3.3VOUT  Output Ripple < 5mVP-P EFFICIENCY  Wide Input Voltage Range: 4.2V to 60V Operating EFFICIENCY (%) 0.22µF  Adjustable Switching Frequency: 200kHz to 2.2MHz  Integrated Boost and Catch Diodes  350mA Output Current 60 70 10 POWER LOSS 1  Accurate Programmable Undervoltage Lockout  FMEA Fault Tolerant (MSOP Package) 0.1 50 Output Stays at or Below Regulation Voltage During   Adjacent Pin Short or When a Pin is Left Floating 0.01 0.1 10 100  Internal Sense Limits1Catch Diode Current  40 Shutdown Current: IQ = 0.7µA Low LOAD CURRENT (mA) 0.01  Power Good Flag  Output Voltage: 1.21V to 25V Efficiency 90 80 EFFICIENCY EFFICIENCY (%) 70 POWER LOSS 60 50 40 0.01 1 0.1 0.01 10 VIN = 12V 1000 100 POWER LOSS (mW)  Internal Compensation  Small, Thermally Enhanced 16-Pin MSOP and (3mm × 3mm) DFN Packages Applications  Automotive Battery Regulation  Power for Portable Products  Industrial Supplies 0.1 1 10 LOAD CURRENT (mA) 100 For more information, including pricing, availability, datasheets and samples (if available), please visit http://ap.nuhorizons.com/FeaturedProducts 11 R egulator LT3029 - Dual 500mA/500mA Low Dropout, Low Noise, Micropower Linear Regulator The LT®3029 is a dual, micropower, low noise, low dropout linear regulator. The device operates either with a common input supply or independent input supplies for each channel, over an input voltage range of 1.8V to 20V. Each output supplies up to 500mA of output current with a typical dropout voltage of 300mV. Quiescent current is well controlled in dropout. With an external 10nF bypass capacitor, output noise is only 20µVRMS over a 10Hz to 100kHz bandwidth. Designed for use in battery-powered systems, the low 55µA quiescent current per channel makes it an ideal choice. In shutdown, quiescent current drops to less than 1µA. Shutdown control is independent for each channel, allowing for flexible power management. The LT3029 optimizes stability and transient response with low ESR ceramic output capacitors, requiring a minimum of only 3.3µF. The regulator does not require the addition of ESR, as is common with other regulators. An excellent choice for battery-powered “keep alive” systems that require optimum run time Internal circuitry provides reverse-battery protection, reverse input–to–output protection, current limiting with foldback and thermal shutdown. The device is available as an adjustable output voltage device with a 1.215V reference voltage. The LT3029 is offered in the thermally enhanced 16-lead MSOP and 16-lead, low profile (4mm × 3mm × 0.75mm) DFN packages. Features 2.5VIN to 1.5V/1.8V Application VIN 2.5V 3.3µF IN2 SHDN1 SHDN2 OUT2 10nF BYP2 ADJ2 GND 54.9k 1% 237k 1% 3.3µF IN1 OUT1 LT3029 BYP1 ADJ1 10nF 113k 1% 237k 1% VOUT2 1.5V 500mA 3.3µF VOUT1 1.8V 500mA Dropout Voltage vs Load Current 400             Dropout Voltage vs Load Current 400 350 DROPOUT VOLTAGE (mV) 300 250 200 150 100 50 0 0 50 100 150 200 250 300 350 400 450 500 OUTPUT CURRENT (mA) TJ = 25°C TJ = 25°C Output Current: 500mA per Channel 350 Low Dropout Voltage: 300mV 300 Low Noise: 20µVRMS (10Hz to 100kHz) 250 Low Quiescent Current: 55µA per Channel 200 Wide Input Voltage Range: 1.8V to 20V (Common or Independent Input Supply) 150 Adjustable Output: 1.215V Reference Voltage Very Low Quiescent Current in Shutdown: <1µA per Channel 100 Stable with 3.3µF Minimum Output Capacitor 50 Stable with Ceramic, Tantalum or Aluminum Electrolytic Capacitors 0 0 100 150 200 250 300 350 Protection 0 Reverse-Battery and 5Reverse Output-to-Input400 450 500 OUTPUT CURRENT (mA) Current Limit with Foldback and Thermal Shutdown Tracking/Sequencing Capability: Compatible with LTC292X Power Supply Tracking ICs  Thermally Enhanced 16-Lead MSOP and 16-Lead (4mm × 3mm) DFN Packages DROPOUT VOLTAGE (mV) Applications      General Purpose Linear Regulator Battery-Powered Systems Microprocessor Core/Logic Supplies Post Regulator for Switching Supplies Tracking/Sequencing Power Supplies 1 A 2 A 12 For more information, including pricing, availability, datasheets and samples (if available), please visit http://ap.nuhorizons.com/FeaturedProducts MIC22700 - 1MHz 7A Integrated Switch High Efficiency Synchronous Buck Regulator The Micrel MIC22700 is a high efficiency 7A Integrated switch synchronous buck (step-down) regulator. The MIC22700 is optimized for highest efficiency, achieving more than 95% efficiency while still switching at 1MHz over a broad range. The device works with a small 1µH inductor and 100µF output capacitor. The ultra-high speed control loop keeps the output voltage within regulation even under extreme transient load swings commonly found in FPGAs and low voltage ASICs. The output voltage can be adjusted down to 0.7V to address all low voltage power needs. The MIC22700 offers a full range of sequencing and tracking options. The Enable/Delay pin combined with the Power Good/POR pin allows multiple outputs to be sequenced in any way during turn-on and turn-off. The RC (Ramp Control™) pin allows the device to be connected to another product in the MIC22xxx and/or MIC68xxx family, to keep the output voltages within a certain ΔV on start up. R egulator Features         Integrated 7 A MOSFET Switch 1MHz PWM Frequency VOUT down to 0.7V En/Delay pin/RC (Ramp Control™) pin 100% duty cycle Pb-free 4mm x 4mm MLF®-24L Ultra fast transient responses Stable with low capacitance ceramic capacitors Benefits Low component count power management solution Low BOM costs Ease of Use Ultra small passive components Avoids noise interference, reduces filtering Address powering all low voltage applications Allows multiple power up protocols: delayed sequencing, window sequencing, standard tracking, ratio metric tracking  Eliminates complex circuitry  Deal for low dropout applications where input to output differential is very small        Compact solutions with improved reliability  Ideal for broad market  Allows smaller output caps, lower overall cost  Smaller footprint and lower cost Applications        Blu-ray players Super3G / WCDMA Base stations Routers DVD recorders Computing peripherals WCDMA Base stations FPGAs, DSP and low voltage ASIC power Typical Application Note: MLF is a registered trademark of Amkor Technology. For more information, including pricing, availability, datasheets and samples (if available), please visit http://ap.nuhorizons.com/FeaturedProducts 13 S ignal C onditioning CPC1966 - a 600V, 3A 1-FORM-A, Opto-SCR Semiconductor IC with Zero Crossing Circuitry The CPC1966 is an AC Solid State Switch utilizing dual-power SCR thyristor outputs. This device also includes zero-cross turn-on circuitry and is specified with a blocking voltage of 600VP. In addition, tightly controlled zero-cross circuitry ensures low noise switching of AC loads by minimizing the generation of transients. The optically coupled input and output circuits provide 3750Vrms of isolation and noise immunity between the control and load circuits. As a result, the CPC1966 is well suited for industrial environments where electromagnetic interference would disrupt the operation of plant facility communication and control systems. Available in the Power SIP package, the CPC1966 offers pin-to-pin compatibility with other solid state relays providing an easy upgrade path for existing designs. Development of Clare’s power relay products was founded on the blending of Clare’s traditional strengths in the design and manufacture of photovoltaic integrated circuits (ICs), leadframe design and multi-chip packaging with IXYS’ expertise in power MOSFETs, power packages and substrate technology. Optically coupled MOSFET technology is used to provide 3750 Vrms of input to output isolation and, as in all Clare solid state relays, the optically coupled output is controlled by a GaAIAs infrared LED. The CPC1966 AC/DC Power Relay is ideal for a variety of power applications including industrial controls, consumer appliances and medical equipment Additional Clare power relays are offered in the ISOPLUS-264 and the i4-PAC (self-isolated) packages. The i4-PAC combines an electrically isolated nonconductive exterior with low thermal impedance making it an ideal solution for power applications preferring a non-biased heat sink with superior thermal management properties and the ISOPLUS-264 is self-isolated. Clare’s unique, RoHS compliant, family of 1-Form-A high-power Solid State Relays (SSRs) delivers the industry’s highest power MOSFET-based SSRs. Applications include: Motor control, robotics, medical equipment, railroad and traffic controls, consumer appliances, industrial controls, and, test and measurement equipment, and they are certified to UL 508 Standard for Industrial Control Equipment. Features  Load Current up to 3Arms  600VP Blocking Voltage  5mA Sensitivity  Zero-Crossing Detection  DC Control, AC Output  Optically Isolated  TTL and CMOS Compatible  Low EMI and RFI Generation  High Noise Immunity  Machine Insertable, Wave Solderable Benefits  Certified to UL 508 Standard for Industrial Control Equipment  The CPC1966 is well suited for industrial environments where electromagnetic interference would disrupt the operation of plant facility communication and control systems.  Zero-cross circuitry ensures low noise switching of AC loads by minimizing the generation of transients  The optically coupled input and output circuits provide 3750Vrms of isolation and noise immunity between the control and load circuits Applications  Motor control  Robotics  Medical equipment  Railroad and traffic controls  Consumer appliances  Industrial controls  Test and measurement equipment (Certified to UL 508 Standard for Industrial Control Equipment) 14 For more information, including pricing, availability, datasheets and samples (if available), please visit http://ap.nuhorizons.com/FeaturedProducts no w fr om O ering of Input Ranges From the Industry’s largest supplier of board mount power Av ai la bl e UEI15 Series UEI30 Series UEI Series UWE Series UQQ Series Ultra-wide input ranges: 9-36V & 18-75V Industry standard open frame package and pinout Outstanding thermal derating performance High e ciency; excellent power density Series UEI15 UEI30 UEI UWE UQQ Package 1 x 1” 1 x 2” 1.6 x 2” 1/8 Brick 1/4 Brick Power 15W 30W 50-60W to 75W to 100W Output Voltages 3.3 to 15Vout 3.3 to 15Vout 3.3 to 15Vout 3.3 to 24Vout 3.3 to 24Vout Data Sheet http://www.murata-ps.com/uei15 http://www.murata-ps.com/uei30 http://www.murata-ps.com/uei http://www.murata-ps.com/uwe http://www.murata-ps.com/uqq www.murata-ps.com Enhance Your Design... With Nu Horizons Education and Development Solutions http://ap.nuhorizons.com/FeaturedProducts Portal is a monthly publication containing new products, technologies and development tools available from Nu Horizons leading suppliers. Portal is availabe both in print and on the web. Sign up online to receive your copy, be notified of upcoming issues or to request samples of the products found inside. http://ap.nuhorizons.com/labcam/ LabCam delivers online training opportunities in a way that recognizes the value of engineers’ time. As easily as You Tube® videos, engineers can quickly load and watch videos from industry leaders consisting of insights on products, evaluation kit overviews, end-user applications and more. Each tutorial is up to ten minutes in length and features technology experts, CEOs and/ or peers introducing new solutions or explaining integral aspects of an important product, solution or application. This free value-added program is packaged for short, informative and high quality distance learning. Nu Horizons is proud to present our education and training program, which offers engineers the opportunity to participate in technical seminars conducted by experts focused on the latest technologies from our leading suppliers. This program provides higher velocity learning to help minimize start-up time to quickly begin your design process utilizing the latest development tools, software and products. Check online for the latest seminar schedule. http://ap.nuhorizons.com/seminars/index.asp Online Learning Center www.nuhorizons.com/olc Nu Horizons Online Learning Center is designed to provide a complete training experience for engineers — without having to leave the office. New supplier trainings are posted twice a month and range from new product overviews to in-depth technical training and potential design implementations. These live trainings are recorded and archived for your viewing convenience. Application Notes www.nuhorizons.com/appnotes In order to simplify the design process, Nu Horizons has created a series of application notes designed to guide engineers through the process of interfacing different devices together. Using a detailed step-by-step approach, these design guides identify key elements in the design process. Topics in the application notes are organized by design task and each topic is a stand-alone section, with a short introduction or overview, followed by the step-by-step design guidelines. All steps include a sufficient level of detail to provide the designer with relevant information to proceed quickly and easily from start to finish. Development Tools http://ap.nuhorizons.com/development/ Nu Horizons offers a wide range of development / evaluation boards, tools and kits featuring the latest technology from the most trusted suppliers in the industry. Visit the development tool section of our website for a variety of solutions all aimed at providing a low-cost solution for designers to accelerate a product’s time-to-market.