G5126 台湾致新代理商 GMT DC-DC系列 LED背光驱动器
High  Efficiency,  Constant  Current,  Boost  DC/DC  White-LEDs Drive

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

ORDER NUMBER	MARKING	TEMP. RANGE	PACKAGE (Green)
G5126TB1U	5126x	~40°C to 85°C	SOT-23-6
G5126RC1U	5126	~40°C to 85°C	TDFN2X2-8

Note:  TB:  SOT-23-6      RC:  TDFN2X2-8  1 : Bonding Code U: Tape & Reel

Pin Configuration                                                                                                           Typical Application Circuit

台湾GMT致新代理商，欢迎咨询13244774414，还有更多精彩致新电源管理IC分享《致新DC-DC》，《DC-DC芯片》。