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Battery Protect
 


 

 
Power Management


uP1712 3A Synchronous Buck Converter
Feature Application Description Pinout Application Circuit

Feature
  • 2.6V to 5.5V Input Voltage Range
  • Adjustable Output from 0.6V to VIN
  • Guaranteed 3.0A Output Current
  • Accurate Reference: 0.6V (+ 1.5%)
  • Up to 95% Conversion Efficiency
  • Low Quiescent Current
  • Integrated Low RDS(ON) Upper and Lower MOSFET Switches: 85mΩ
      and 75mΩ
  • Current Mode PWM Operation
  • Fixed Frequency: 1MHz
  • 100% Maximum Duty Cycle for Lowest Dropout
  • Internal Soft-Start
  • No Schottky Diode Required
  • Over-Voltage Protection
  • Under-Voltage Protection for uP1712PQDD and uP1712PSU8 only
  • Over-Temperature and Over-Current Protection
  • WQFN3x3-16L or PSOP-8L Packages
  • RoHS Compliant and Halogen Free


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Application
  • Battery-Powered Portable Devices
    • MP3 Players
    • Digital Still Cameras
    • Wireless and DSL Modems
    • Personal Information Appliances
  • 802.11 WLAN Power Supplies
  • FPGA/ASIC Power Supplies
  • Dynamically Adjustable Power Supply for CDMA/WCSMA Power Amplifiers
  • USB-Based xDSL Modems and Other Network Interface Cards
  • Point-of-Load Regulation
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Description

The uP1712 is a high efficiency synchronous-rectified buck converter with internal power switches. Fixed 1MHz PWM operation allows possible smallest output ripple and external component size. With high conversion efficiency and small package, the uP1712 is ideally suitable for portable devices and USB/PCIE-based interface cards where PCB area is especially concerned.

With internal low RDS(ON) switches, the uP1712 is capable of delivering 3.0A output current over a wide input voltage range from 2.6V to 5.5V. The output voltage is adjustable from 0.6V to VIN by a voltage divider. Other features include internal soft-start, chip enable, over-voltage, undervoltage, over-temperature and over-current protections. The uP1712 is available in a space-saving WQFN3x3- 16L or PSOP-8L packages.


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Pinout

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Application Circuit



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