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MCP1643 - 1 MHz Low Start-up Voltage Synchronous Boost LED Constant Current Regulator

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Datasheet Details

Part number MCP1643
Manufacturer Microchip Technology
File Size 638.21 KB
Description 1 MHz Low Start-up Voltage Synchronous Boost LED Constant Current Regulator
Datasheet download datasheet MCP1643 Datasheet

Overview

MCP1643 1 MHz Low Start-up Voltage Synchronous Boost LED Constant Current.

Key Features

  • 1.6A Typical Peak Input Current Limit.
  • Up to 550 mA LED Load Current.
  • Low Start-up Voltage: 0.65V (typical, 25 mA LED Current).
  • Low Operating Input Voltage: down to 0.5V.
  • Maximum Input Voltage < VLED < 5.0V.
  • Maximum Output Voltage: - 5.0V - Overvoltage Protection.
  • Low Reference Voltage: - VFB = 120 mV - Minimal Power Loss on Sense Resistor.
  • Pulse-Width Modulation Mode Operation (1 MHz).
  • Internal Synchronous Rectifi.

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