AP3019AKTR-G1

タイトルまたは説明

The AP***9A 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 1.2MHz PWM control scheme
is employed in this IC, which means tiny external
components can be used. Specifically, 1mm tall
inductor and 0.*2μF output capacitor for a typical
application is sufficient. Additionally, the Schottky
diode in boost circuit is integrated on this chip.
AP***9A also provides a disable pin to ease its use
for different systems.
The output over-voltage protection is implemented in
AP***9A. When any LED is broken or in other
abnormal conditions, the output voltage will be
clamped.
The AP***9A is available in standard SOT****6 and
TSOT****6 packages.