19-2761; Rev 0; 1/03
KIT ATION EVALU E L B A AVAIL
Ultra-High-Efficiency White LED Drivers
General Description Features
o Synchronous Step-Up
Regulator Achieves 95% Efficiency Internal Switch and Synchronous Rectifier Eliminates External MOSFETs and Diodes 1MHz Fixed Frequency Minimizes Component Sizes o o o o Up to 90% Total LED Efficiency Accurate LED Current Matching (8% max) Adjustable Maximum LED Current Multimode Dimming Control Digital Pulse-Width Modulation Control 2-Bit Parallel Control 3-Bit Parallel Control Analog Control o Selectively Enable LEDs o Open-LED Detection o Unique 0.
5mA LED Test Mode o 2.
7V to 5.
5V Input Supply Range o Small 4mm x 4mm 20-Pin Thin QFN Package
MAX19...