Preliminary Datasheet
WHITE LED STEP-UP CONVERTER
AP3036/A
General Description
The AP3036/A is an inductor-based DC/DC converter designed to drive up to eight white LEDs in series for backlight.
Only one feedback resistor is needed to control the LED current and obtain required brightness.
A constant frequency 1.
0MHz PWM control scheme is employed in this IC, which means tiny external components can be used.
Specifically, 1mm tall inductor and 0.
22µF output capacitor for a typical application is sufficient.
Additionally, the
Schottky diode in boost circuit is integrated on this chip.
The AP3036/A also provides a disable pin to ease its use for different systems.
The output over-voltage pr...