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MAX1575 Datasheet White Led 1x/1.5x Charge Pump

Manufacturer: Maxim Integrated (now Analog Devices)

MAX1575 Overview

By utilizing adaptive 1x/1.5x chargepump modes and very-low-dropout current regulators, it achieves high efficiency over the full 1-cell lithiumbattery input voltage range. A 1MHz fixed-frequency switching allows for tiny external ponents, and the regulation scheme is optimized to ensure low EMI and low input ripple. The MAX1575 uses an external resistor to set the fullscale 100% LED current.

MAX1575 Key Features

  • Powers Main and Sub-Display LEDs
  • 85% Average Efficiency (PLED / PBATT) Over Li+ Battery Discharge
  • 2% LED Current Matching
  • Up to 30mA/LED Drive Capability
  • Adaptive 1x/1.5x Mode Switchover
  • Low Input Ripple and EMI
  • Individual 5% to 100% Dimming Through Single-Wire Serial Pulse Interface
  • Low 0.1µA Shutdown Current
  • 2.7V to 5.5V Supply Voltage Range
  • Soft-Start Limits Inrush Current

More Datasheets from Maxim Integrated (now Analog Devices)

Part Number Description
MAX1572 PWM DC-to-DC Step-Down Converter
MAX1573 White LED 1x/1.5x Charge Pump
MAX1577Y 1.2A White LED Regulating Charge Pump
MAX1577Z 1.2A White LED Regulating 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

MAX1575 Distributor