G5126 台湾致新代理商 GMT DC-DC系列 LED背光驱动器

Part Number	Vin (V)min.	Vin (V) max.	LED CH	VO_MAX(V)	ISW(A)	FSW(k Hz)	VLED FB (V)	Note	Package
G5126	2.7	5.5	1	28.0	0.85	1000	0.2	LX, GND, FB, EN, OVP, IN, EN Dimming 200~2k Hz	TDFN2X2-8/ SOT-23-6

General Description
The G5126 boost converter contains a 0.7Ω internal switch. The IC operates at constant frequency 1MHz, allowing the use of tiny, low cost and low height in-ductors and capacitors. The IC operates from a 2.7V to 5.5V supply voltage. High inrush current at start-up is eliminated using the soft-start function. Constant frequency current mode PWM architecture results in low, predictable output noise. The G5126 includes cycle-by-cycle 850mA current limiting to maximum inductor current and over-temperature protection cir-cuit. The over-voltage protection will be enabled when VOUT exceeds 28V. The current of LED is set by a resistor connected between FB and GND. The G5126 is available in SOT-23-6 & TDFN2X2-8 package.

Features
Operating Voltage：2.7V to 5.5V
High Operating Frequency：1MHz
High Output Voltage：28V
Shutdown Current：<1μA
Over-Voltage Protection
Digital Dimming Control
Built-in Cycle-by-Cycle Current-Limiting
Soft-Start Function
0.2V Low Reference Voltage
SOT-23-6 & TDFN2X2-8 Package

Applications
LED Module
Compact Back Light Module
Constant Current Source

Ordering Information