G5126TB1U
High Efficiency, Constant Current, Boost DC/DC White-LEDs Drive
The G5126 boost converter contains a 0.7 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.
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規格表
|
Vin (V)
|
min.
|
2.7 |
|---|---|---|
|
max.
|
5.5 | |
|
LED
|
CH
|
1 |
|
VLED
|
FB (V)
|
0.2 |
|
VOMAX
|
(V)
|
28 |
|
ISW
|
(A)
|
0.85 |
|
FSW
|
(k Hz)
|
1000 |
|
Note
|
LX, GND, FB, EN, OVP, IN,EN Dimming 200~2k Hz | |
|
Package
|
SOT-23-6 | |
|
Datasheet
|
EDS-5126-386-130301-0.7.pdf | |
