KA3525A

KA3525A SMPS Controller www.fairchildsemi.com Features • 5V ±1% Reference • Oscillator Sync Terminal • Internal Soft Start • Deadtime Control • Under Voltage Lockout Description The KA3525A is a monolithic integrated circuit that includes all of the control circuits necessary for a pulse width modulating regulator. There are a voltage reference, an error amplifier, a pulse width modulator, an oscillator, an under voltage lockout, a soft start circuit, and the output driver in the chip. 16-DIP Internal Block Diagram 1 VREF 16 VCC 15 GND 12 BAND GAP REF 5V U.V.L.O. EA(-) 1 EA(+) 2 EAOUT.