NCP3235 Datasheet (ON Semiconductor) - High Current Synchronous Buck Converter

NCP3235, High Current Synchronous Buck Converter

Pin No.

Symbol Description 1 SS A capacitor from this pin to GND allows the user to adjust the soft *start ramp time.

2 FB Output voltage feedback.

3 COMP Output of the error amplifier.

4 ISET A resistor from this pin to ground sets the over *current protection (OCP) thresho

NCP3235 Buck Converter - High Current, Synchronous The NCP3235 is a high current, high efficiency voltage mode synchronous buck converter which operates from 4.5 V to 23 V input and generates output voltages down to 0.6 V at up to 15 A continuous current.

It has two operation modes: FCCM and automatic CCM/DCM.

In automatic CCM/DCM mode, the controller can switch smoothly between CCM and DCM, where converter runs at reduced switching frequency to achieve much higher efficiency at light load.

The

NCP3235 Features

* Wide Input Voltage Range from 4.5 V to 23 V

* 0.6 V Internal Reference Voltage

* Switching Frequency Option: 550 kHz, 1.1 MHz

* External Programmable Soft

* Start

* Lossless Low

* side FET Current Sensing

* Output Over

* voltage Pro