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| Programmable Power Technology 2010 www.exar.com Exar's Power XR Digital Power Solutions Exar's PowerXR ICs integrate the best of both worlds; the low cost and flexibility of digital power control as well as the robust power capabilities of high performance analog power switches. PowerXR products reduce development time from weeks to hours, enabling a significant time-to-market advantage for system design engineers. Additionally, Exar's Digital Power StudioTM is an easy to use software environment, empowering engineers to create complex sequencing schemes and power systems, and modify voltage, current or other parameters in seconds. Exar's PowerXR Family Feature (re)configurability / Flexibility Advantage * Digitally (re)configurable SoC power supply solution Benefit * * * Reduces design effort by using simple GUI instead of changing hardware Reduces risk by enabling customer to repair/ upgrade power supply when already at end-customer location Use common platform across multiple customer designs Replaces cumbersome discrete solutions, reduces footprint and cost of passive components Complete, Feature-Rich Power SoC Solution * * Power SoC Solution replaces up to 13 discrete ICs in 6x6 mm package Usable across a wide range of Vin, and broad cross-section of embedded processors, ASICs, or SOCs. Rapid development, easy to use Enables fast, simple design of complex power solution * Digital Power StudioTM * * * * Accelerates time to market from first meeting to production in as little as 2 weeks Enable wide range of design engineers to leverage their level of expertise for optimal design Small SoC power supply solution with 4 power controllers, 1 LDO and all power management on a single chip. Power SoC Solution replaces up to 13 discrete ICs in 6x6 mm package. Excellent Efficiency Up to 93% efficiency on 4 combined voltage rails. Efficiency Digitally (re)configurable SOC power supply solution Useable across a wide range of Vin, and broad cross-section of embedded processors, ASICs, or SOCs. Digital Power StudioTM enables fast, simple design of complex power solution. XRP7714 4-Channel Efficiency 100% 95% 90% 85% 80% 75% 70% 65% 60% 55% 50% 1 2 3 4 5 6 Vin = 5V Vout = 1 , 1.2, 1.8, 2.5V Iout = 5A max. The Power XR Product Family The PowerXR family is comprised of five Pluse-Width Modulated (PWM) step-down DC-DC controllers with a built-in LDO for standby power and GPIOs. The XRP7704, XRP7708, XRP7713, XRP7714, and XRP7740 devices provide a complete power management solution in one IC and are fully programmable via the included IC serial interface. Independent Digital Pulse-Width Modulator (DPWM) channels regulate output voltages and provide all required protection functions such as current limiting and overvoltage protection. 2 Part Number Channels Output Current Operating Voltage Min. Max. Min. Quiescent Output Current Voltage Frequency Package Features XRP7713 3 3 x 5A 4.75V 25V 0.9V 9mA Prog. 0.3MHz to 1.5MHz Prog. 0.3MHz to 1.5MHz Prog. 0.3MHz to 1.5MHz Prog. 0.3MHz to 1.5MHz Prog. 0.3MHz to 1.5MHz TQFN-32 DPWM Controller IC (re)configurable Built-in 3.3V/5V LDO - Integrated Drivers Full protection DPWM Controller IC (re)configurable Built-in 3.3V/5V LDO - Integrated Drivers Full protection DPWM Controller IC (re)configurable Built-in 3.3V/5V LDO - Integrated Drivers Full protection DPWM Controller IC (re)configurable Built-in 3.3V/5V LDO - Integrated Drivers Full protection DPWM Controller IC (re)configurable Built-in 3.3V/5V LDO - Integrated Drivers Full protection XRP7714 4 5A 4.75V 25V 0.9V 9mA TQFN-40 XRP7704 4 4 x 5A 6.5V 20V 0.9V 9mA TQFN-40 XRP7708 4 2 x 5A 2 x 8A 6.5V 20V 0.9V 9mA TQFN-40 XRP7740 4 2 x 5A 2 x 15A 6.5V 20V 0.9V 9mA TQFN-40 Applications * * * * * Consumer - Set-Top Box (STB), IP Camera, Plasma Display Panel (PDP) Computing - Server, Storage Systems Industrial - Automatic Test Equipment, Point of Sale Medical Equipment Networking and Telecommunications Equipment, Ethernet Adapter cards Vin PowerXR Architecture Overview Internal LDO Vin1 DPWM Switching Controller #1 FET Driver Vout1t Power XR Family Features * * * * * * * * * * * * * Three to four switching buck (step-down) controllers each with internal FET drivers Output voltages programmable from 0.9V to 5.1V Up to 6 (re)configurable GPIO pins Fully programmable via IC interface Independent Digital Pulse Width Modulator (DPWM) channels with five coefficient PID control High Integration: elimination of external circuits and components required for compensation, parameter adjustment and interface Programmable DPWM frequency range (300 kHz to 1.5 MHz) enables efficiency and component size optimization Complete power monitoring and reporting Independently controlled start-up delay and ramp for each regulator Independently controlled soft-stop delay and ramp for each regulator with a programmable stop voltage Over-temperature protection (OTP) and Under Voltage Lockout (UVLO); per-channel over-current protection (OCP) and over-voltage protection (OVP) Built-in LDO (configurable to 3.3V or 5V) with overcurrent protection Non-volatile memory for system Vin2 DPWM Switching Controller #2 FET Driver Vout2 Vin3 DPWM Switching Controller #3 FET Driver Vout3 Vin4 DPWM Switching Controller #4 FET Driver Vout4 Soft Start/Stop Voltage Ramp and Timing Control GPIO GPIO Ports Vref Configurable LDO Linear Voltage Regulator LDO Under Voltage Lockout PowerGood Monitor OverTemp Monitor Fault Handling IC IC Interface Configuration Registers OTP Memory 3 Exar's Digital Power StudioTM Exar's Digital Power Studio (DPSTM) interactive design tool enables you to create a complete 5 channel optimized power supply design with complex sequencing and many advanced power management features all with a few clicks of the mouse. Download the latest DPS from ww.exar.com/DigitalPower to start and finish your design today. XRP7740 Application (Vin = 12V, Iout = 3A-15A, Vout = 0.9V-2.5V) PCI 12V Avcc 1.0V Vcc Aux 2.5V PCI 3.3V XRP7740 Sync Sync DDR 1.5V Avtt 1.2V Vcc Int 1.0V PHY 1.8V PCI 3.3V XRP7740 PHY 0.9V SFP 3.3V Core Config Flash I/O VccR VccT Core I/O SFP+ DDR3 1Gbx16 PHY 1042 VccR VccT FPGA Data[63:0] Address, Controller SFP+ Vtt Reg 4 Evaluation Boa rds Evaluation boards for all PowerXR family of devices are available along with their user manual. Actual 3-Channel Power Supply Solution XRP7714EVB XRP7740EVB XCM XPM Technical Resources Visit www.exar.com/digitalpower to learn more about PowerXR products, development tools and support. Datasheets * XRP7704 Datasheet * XRP7708 Datasheet * XRP7713 Datasheet * XRP7714 Datasheet * XRP7740 Datasheet Digital Power Studio Software * ExarDigitalPowerStudio_setup.zip Evaluation Boards * XRP7704EVB * XRP7708EVB * XRP7714EVB * XRP7740EVB * XRP77XX-XCM (Exar Configuration Module) * XRP77XX-XPM (Exar Programming Module) * XRP77XX Gerber Files User Guides * Digital Power StudioTM Quick Start Guide * XPM Operator Manual * XCM Operator Manual Articles/White Paper * Programmable Power Systems Now Essential for Advanced Processors * 17 Ways Field Programmable PS Reduce Risk Technical Email Support * digital.power@exar.com Power XR in the News The XRP7704 and XRP7740 were recognized as one of the Top 100 new products of 2009 by EDN (Electronic Design Magazine) 5 www.exar.com E X A R C O R P O R AT I O N 48720 Kato Road Fremont, CA 94538 U.S.A. X R P W R X R B R O - 0 410 T. +1.510.668.7000 F. +1.510.668.7001 E X A R I S A T R A D E M A R K O F E X A R C O R P O R AT I O N . A L L OT H E R T R A D E M A R K S A N D R E G I S T E R E D T R A D E M A R K S A R E P R O P E R T Y O F T H E I R R E S P E C T I V E O W N E R S . (c) 2 010 E X A R C O R P O R AT I O N |
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