Boost DC/DC White-LEDs Drive
Global Mixed-mode Technology
G5126
High Efficiency, Constant Current, Boost DC/DC
White-LEDs Drive
Features
Operat...
Description
Global Mixed-mode Technology
G5126
High Efficiency, Constant Current, Boost DC/DC
White-LEDs Drive
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
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 inductors 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 circuit. 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.
Ordering Information
ORDER NUMBER G5126TB1U G5126RC1U
Note: TB: SOT-23-6 RC: TDFN2X2-8 1 : Bonding Code U: Tape & Reel
MARKING
5126x 5126
TEMP. RANGE -40°C to 85°C -40°C to 85°C
PACKAGE (Green) SOT-23-6
TDFN2X2-8
Pin Configuration
Typical Application Circuit
LX 1
G512...
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