Datasheet Summary
1.5 A, 340 kHz, Buck
Regulator with
Synchronization Capability
The NCP1547 is a 1.5 A buck regulator IC operating at a fixed- frequency of 340 kHz. The device uses the V2™ control architecture to provide unmatched transient response, the best overall regulation and the simplest loop pensation for today’s high- speed logic. The NCP1547 acmodates input voltages from 4.0 V to 40 V and contains synchronization circuitry.
The on- chip NPN transistor is capable of providing a minimum of 1.5 A of output current, and is biased by an external “boost” capacitor to ensure saturation, thus minimizing on- chip power dissipation. Protection circuitry includes thermal shutdown, cycle- by- cycle...