Description
The MAX1561/MAX1599 step-up converters drive up to six white LEDs with a constant current to provide backlight in cell phones, PDAs, and other hand-held devices.
The step-up converter topology allows series connection of the white LEDs so the LED currents are identical for uniform brightness.
Features
- o Accurate Current Regulation for Uniform Illumination
o High Efficiency Up to 87% o Flexible Analog or PWM Dimming Control o Up to 900mW Output Power with Internal 30V
MOSFET Switch
o Fast 1MHz (MAX1561) or 500kHz (MAX1599) PWM Operation
o Small, Low-Profile External Components o 2.6V to 5.5V Input Range o 26V (max) Output with Overvoltage Protection o Optimized for Low 15mVP-P Input Ripple o Soft-Start with Zero Inrush Current o 0.3µA Shutdown Current o Tiny 8-Pin 3mm x 3mm Thin DFN Package
O.
MAX1599 Datasheet
