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SI4724 数据表(PDF) 1 Page - Vishay Siliconix

部件名 SI4724
功能描述  N-Channel Synchronous MOSFETs With Break-Before-Make
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制造商  VISHAY [Vishay Siliconix]
网页  http://www.vishay.com
标志 VISHAY - Vishay Siliconix

SI4724 数据表(HTML) 1 Page - Vishay Siliconix

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Vishay Siliconix
Si4724
Document Number: 71863
S11-1185-Rev. F, 13-Jun-11
www.vishay.com
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
N-Channel Synchronous MOSFETs With Break-Before-Make
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
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.
FUNCTIONAL BLOCK DIAGRAM
BOOT
D1
S1
D2
VDD
IN
Undervoltage
Lockout
GND
Q2
Q1
-
+
VDD
SYNC EN
VREF
Level Shift
S2


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