NCP3235 datasheet(1/16 Pages) ONSEMI

Part #	NCP3235

Description	High Current Synchronous Buck Converter

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Manufacturer	ONSEMI [ON Semiconductor]

Direct Link	http://www.onsemi.com

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May, 2016 − Rev. 0

1

Publication Order Number:

NCP3235/D

NCP3235

High Current Synchronous

Buck Converter

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 is available in 6 mm x 6 mm QFN−40 pin package.

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 Protection and Under−voltage Protection

• Selective Hiccup/Latch Off Operation for All Faults

• Pre−bias Start−up

• Adjustable Output Voltage

• Power Good Output

• Internal Over−temperature Protection

• Adjustable Input UVLO

• This is a Pb−Free Device

Typical Application

• Industry PC Equipment

• ASIC, FPGA, DSP and CPU Core and I/O Supplies

• Server and Storage System

• Telecom and Network Equipment

QFN40 6x6, 0.5P

CASE 485CM

Device

Package

Shipping†

ORDERING INFORMATION

NCP3235MNTXG

QFN−40

(Pb−Free)

2500 /

Tape & Reel

MARKING

DIAGRAM

A

= Assembly Location

WL

= Wafer Lot

YY

= Year

WW

= Work Week

G

= Pb−Free Package

NCP3235

AWLYYWWG

1

www.onsemi.com

†For information on tape and reel specifications,

including part orientation and tape sizes, please

refer to our Tape and Reel Packaging Specification

Brochure, BRD8011/D.

PIN CONNECTIONS

(Top View)

40

1

31

32

33

34

35

36

37

38

39

40

20

19

18

17

16

15

14

13

12

11

VIN

EP42

GND

EP41

VSWH

EP43

VSWH

PGND

VSWH

VIN

VSW

BST

AGND

VCC

EN

VB

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