Datasheet4U Logo Datasheet4U.com

MAX1577Z - 1.2A White LED Regulating Charge Pump

Download the MAX1577Z datasheet PDF. This datasheet also covers the MAX1577Y variant, as both devices belong to the same 1.2a white led regulating charge pump family and are provided as variant models within a single manufacturer datasheet.

General Description

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.

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-Sta.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MAX1577Y_MaximIntegratedProducts.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
MAX157 Dual-Channel CardBus and PCMCIA VCC/VPP Power-Switching Networks Maxim
MAX1570 White LED Current Regulator Maxim
MAX1574 180mA / 1x/2x / White LED Charge Pump in 3mm x 3mm TDFN Maxim
MAX150 CMOS High Speed 8Bit A/D Converter with Refrence and Track/Hold Function Maxim
MAX15002 Dual-Output Buck Controller Maxim Integrated

Other Datasheets by 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

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.

View original datasheet text
19-3461; Rev 0; 11/04 ILABLE N KIT AVA IO T A U L A EV www.DataSheet4U.com 1.2A White LED Regulating Charge Pump for Camera Flashes and Movie Lights General Description 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. Fast (1MHz) switching allows the use of tiny external components. The MAX1577Y/MAX1577Z use an external resistor to set the full-scale LED current.