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