General Description
The MAX8834Y/MAX8834Z flash drivers integrate a 1.5A PWM DC-DC step-up converter and three programmable low-side, low-dropout LED current regulators. The step-up converter features an internal switching MOSFET and synchronous rectifier to improve efficiency and minimize external component count. An I2C interface provides flexible control of stepup converter output voltage setting, movie/flash mode selection, flash timer duration settings, and current regulator settings. The MAX8834Y/MAX8834Z operate down to 2.5V, making them future proof for new battery technologies.

Features
♦ 2.5V to 5.5V Operation Range
♦ Step-Up DC-DC Converter
    1.5A Guaranteed Output Current
    Adaptive or I2C Programmable Output Voltage
    2MHz and 4MHz Switching Frequency Options
♦ Two Flash/Movie LED Current Regulators
    I2C Programmable Flash and Movie Current
    Low-Dropout Voltage (110mV max) at 500mA
♦ LED Indicator Current Regulator
    I2C Programmable Output Current
    Ramp and Blink Timers for Indicator Mode
    Low-Dropout Voltage (130mV max) at 16mA
♦ I2C Programmable Safety and Watchdog Timers
♦ GSM Blank Logic Input
♦ MAXFLASH System Lockup Protection
♦ Remote Temperature Sensor Input
♦ Open/Short LED Detection
♦ Thermal Shutdown Protection
♦ < 1µA Shutdown Current
♦ 20-Bump, 0.5mm Pitch, 2.5mm x 2.0mm WLP

Applications
    Cell Phones and Smart Phones
    PDAs, Digital Cameras, and Camcorders