■ Features

• Output current: 3A

• High efficiency: TYP 83 (STA821M)

• Built-in flywheel diode (Schottky-barrier diode)

• Requires only 3 discrete components: output

coil, input and output capacitors

• Phase correction and output voltage

adjustment performed internally

• Built-in reference oscillator (110kHz)

• Built-in foldback-overcurrent and thermal

protection circuits

• Built-in ON/OFF circuit (soft start available)

■ Applications

• Power supplies for telecommunication

equipment

• On-board local power supplies

• OA equipment

• For stabilization of the secondary-side output

voltage of switching power supplies