Features
„ 2.5 to 15 V supply voltage operating range.
„ Low current consumption: 6 mA in operation,
1μA or less in stand-by .
„ 20 kHz to 1 MHz operation frequency range.
„ Provides a fixed output current with minimal
supply voltage fluctuations by using an external resistor to set the output current.
„ Totem-pole output.
„ Built-in soft start circuit.
„ Built-in timer-latch short circuit detection and
protection circuit (SCP).

General Description
The AT1380A is a single-channel PWM control IC for
DC/DC conversion with soft start function and short
circuit detection. Adjustable soft start is programmed
with an external capacitor on SCP pin. The AT1380A
is ideal for up, down and fly-back conversion.

Applications
„ LCD Displays
„ PDAs
„ Digital Still Cameras