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MAX1577Z Datasheet 1.2a White Led Regulating Charge Pump

Manufacturer: Maxim Integrated (now Analog Devices)

This datasheet includes multiple variants, all published together in a single manufacturer document.

MAX1577Z Overview

The MAX1577Y/MAX1577Z charge pumps drive white LEDs, including camera strobes, with regulated current up to 1.2A (guaranteed to 800mA). The very low openloop output resistance allows high flash brightness, even from a low battery input voltage. The adaptive 1x/2x regulating charge-pump operation provides high efficiency (up to 92%) while in movie mode or backlighting.

MAX1577Z Key Features

  • Up to 1.2A Output Drive Capability (800mA Guaranteed)
  • Up to 92% PLED / PBATT Efficiency for Movie Mode
  • Flexible Brightness Control Two-Bit Logic for 100%, 33%, 20%, and Off PWM for 20% to 100%
  • 3% Current Regulation Over Line and Temperature
  • Current or Voltage Regulation for Flash and Backlighting (MAX1577Y)
  • Current Regulation for Flash (MAX1577Z)
  • Low Ripple and EMI
  • 2.7V to 5.5V Supply Voltage Range
  • Soft-Start Limits Inrush Current
  • Output-Voltage Regulation Mode

More Datasheets from Maxim Integrated (now Analog Devices)

Part Number Description
MAX1577Y 1.2A White LED Regulating Charge Pump
MAX1572 PWM DC-to-DC Step-Down Converter
MAX1573 White LED 1x/1.5x Charge Pump
MAX1575 White LED 1x/1.5x Charge Pump
MAX1578 Complete Bias and White LED Power Supplies
MAX1579 Complete Bias and White LED Power Supplies
MAX15000 Current-Mode PWM Controllers
MAX15001 Current-Mode PWM Controllers
MAX15003 Triple-Output Buck Controller
MAX15004 4.5V to 40V Input Automotive Flyback/Boost/SEPIC Power-Supply Controllers

MAX1577Z Distributor