SI4724CY-T1-E3 查看數據表（PDF） - Vishay Semiconductors

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SI4724CY-T1-E3

N-Channel Synchronous MOSFETs With Break-Before-Make

Vishay Semiconductors 

Si4724

Vishay Siliconix

N-Channel Synchronous MOSFETs With Break-Before-Make

DESCRIPTION

The Si4724CY N-Channel synchronous MOSFET with

break-before-make (BBM) is a high speed driver designed to

operate in high frequency DC/DC switchmode power

supplies. It’s purpose is to simplify the use of N-Channel

MOSFETs in high frequency buck regulators. This device is

designed to be used with any single output PWM IC or ASIC

to produce a highly efficient low cost synchronous rectifier

converter. A synchronous enable pin (disable = low,

enable = high) controls the synchronous function for light

load conditions.

The Si4724CY is packaged in Vishay Siliconix’s high

performance LITTLE FOOT® SO-16 package.

FEATURES

• 0 V to 30 V operation

• Driver impedance-3

• Undervoltage lockout

• Fast switching times

• 30 V MOSFETs

• High side: 0.0375 at VDD = 4.5 V

• Low side: 0.029 at VDD = 4.5 V

• Switching frequency: 250 kHz to 1 MHz

• Integrated schottky

FUNCTIONAL BLOCK DIAGRAM

VDD

IN

SYNC EN

GND

Level Shift

Undervoltage

Lockout

VDD

+

-

VREF

BOOT

D1

Q1

S1

D2

Q2

S2

Document Number: 71863

www.vishay.com

S11-1185-Rev. F, 13-Jun-11

1

This document is subject to change without notice.

THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

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