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AME5172 - 0.85V Single Cell Boost DC-DC Converter

General Description

The AME5172 is a high-efficiency, current mode, synchronous PWM Boost DC-DC Converter with fixed 3.3V output voltage for system applications powered by single or double cell NiMH or Alkaline battery pack.

Key Features

  • l PWM Control with 1.2MHz Fixed Frequency l Up to 92% Efficiency l 0.85V Low Start-up Input Voltage l Internal Synchronous Rectifier l Fixed 3.3V Output Voltage Options l 0.8A, 0.35Ω Power MOSFET l 1µA Shutdown Current l True Shutdown l SOT-25 Package l All AME's Lead Free Products Meet RoHS Standards n.

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Datasheet Details

Part number AME5172
Manufacturer AME
File Size 142.56 KB
Description 0.85V Single Cell Boost DC-DC Converter
Datasheet download datasheet AME5172 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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AME, Inc. AME5172 n General Description The AME5172 is a high-efficiency, current mode, synchronous PWM Boost DC-DC Converter with fixed 3.3V output voltage for system applications powered by single or double cell NiMH or Alkaline battery pack. Built-in 0.35Ω NMOS switch and 0.45Ω PMOS synwww.DataSheet4U.com chronous rectification significantly improves efficiency and reduces external components count. High switching frequency (at 1.2MHz) allows easy filtering and faster loop performance. AME5172 uses SOT-25 package that gives a small size solution. 0.85V Single Cell Boost DC-DC Converter n Typical Application L1 4.7µH VIN CIN 4.7µF 1 5 VOUT 3.3V up to 200mA COUT 4.7µF IN SW AME5172 OUT OFF ON 3 EN GND 4 2 n Features l PWM Control with 1.