NCP1597B Datasheet - ON Semiconductor

NCP1597B 2 A Synchronous Buck Regulator

Pin No Symbol 1 EN 2 VCC 3 VCCP 4 AGND 5 FB 6 7, 8 9, 10 EP NC LX PGND PAD Figure 1. Block Diagram Description Logic input to enable the part. Logic high turns on the part and a logic low disables it. An internal pullup forces the part into an enable state when no external bias is present on.

NCP1597B Buck Regulator - Synchronous 1 MHz, 2 A The NCP1597B is a fixed 1 MHz, high output current, synchronous PWM converter that integrates a low resistance, high side P channel MOSFET and a low side N channel MOSFET. The NCP1597B utilizes internally compensated current mode control to provide good transient response, ease of implementation and excellent loop stability. It regulates input voltages from 4.0 V to 5.5 V down to an output v.

NCP1597B Features

* including fixed internal switching frequency (FSW), and an internal soft

* start to limit inrush current. Using the EN pin, shutdown supply current is reduced to 3 mA maximum. Other features include cycle

* by

* cycle current limiting, short

* circuit protection, power savin

NCP1597B Datasheet (560.24 KB)