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MCP1640B Datasheet 0.65V Start-up Synchronous Boost Regulator

Manufacturer: Microchip Technology

Download the MCP1640B datasheet PDF. This datasheet also includes the MCP1640 variant, as both parts are published together in a single manufacturer document.

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Note: The manufacturer provides a single datasheet file (MCP1640_MicrochipTechnology.pdf) that lists specifications for multiple related part numbers.

General Description

The MCP1640/B/C/D is a compact, high-efficiency, fixed frequency, synchronous step-up DC-DC converter.

It provides an easy-to-use power supply solution for applications powered by either single-cell, two-cell, or three-cell alkaline, NiCd, NiMH, and single-cell Li-Ion or Li-Polymer batteries.

Low-voltage technology allows the regulator to start-up without high inrush current or output voltage overshoot from a low 0.65V input.

Overview

MCP1640/B/C/D 0.65V Start-Up Synchronous Boost Regulator with True Output Disconnect or Input/Output Bypass.

Key Features

  • Up to 96% Typical Efficiency.
  • 800 mA Typical Peak Input Current Limit: - IOUT > 100 mA @ 1.2V VIN, 3.3V VOUT - IOUT > 350 mA @ 2.4V VIN, 3.3V VOUT - IOUT > 350 mA @ 3.3V VIN, 5.0V VOUT.
  • Low Start-Up Voltage: 0.65V, typical 3.3V VOUT @ 1 mA.
  • Low Operating Input Voltage: 0.35V, typical 3.3VOUT @ 1 mA.
  • Adjustable Output Voltage Range: 2.0V to 5.5V.
  • Maximum Input Voltage  VOUT < 5.5V.
  • Automatic PFM/PWM Operation (MCP1640/C): - PFM Oper.