G5139 - Global Mixed-mode Technology

G5139 Boost White LED Driver

The G5139 boost converter contains a 0.46Ω internal switch. The IC operates at constant frequency 600 kHz, allowing the use of tiny, low cost and low height inductors and capacitors. The IC operates from a 2.7V to 7V supply voltage. High inrush current at start-up is eliminated using large compensation capacitor. Constant frequency current mode PWM architect.

Features

„ 2.7V to 7V Input Voltage Range „ 600kHz Operating Frequency „ 38V High Output Voltage „ Over-Voltage Protection „ 5kHz to 100kHz PWM Brightness Control „ Built-in Cycle-by-Cycle Current Limit „ 0.2V Low Reference Voltage „ TDFN2X2-6 Package Applications „ Cellular Phone „ LED Module „ Compact Back Light Module General Description The G5139 boost converter contains a 0.46Ω internal switch. The IC operates at constant frequency 600 kHz, allowing the use of tiny, low cost and low height inductors and capacitors. The IC operates from a 2.7V to 7V supply voltage. High inrush current at start-up .