General Description
The G5125 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 and can boost supply voltage
up to 30V at the output. 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 G5125 includes
cycle-by-cycle 850mA current limiting to maximum
inductor current and over-temperature protection circuit.
The G5125 is suitable for small or medium size
LCD panel of high bias voltage with a constant current
to provide PDAs, and other portable devices. The
G5125 is available in SOT-23-5 & TDFN2X2-6 package.