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GRM31CR71C106KAC7L

更新时间： 2024-11-02 12:46:23
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威世 - VISHAY 稳压器
页数 文件大小 规格书
24页 1226K
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6 A, microBUCK SiC414, SiC424 Integrated Buck Regulator with 5 V LDO

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SiC414, SiC424  
Vishay Siliconix  
6 A, microBUCK® SiC414, SiC424  
Integrated Buck Regulator with 5 V LDO  
DESCRIPTION  
FEATURES  
•
•
•
•
•
•
High efficiency > 95 %  
The Vishay Siliconix SiC414 and SiC424 are an advanced  
stand-alone synchronous buck regulator featuring integrated  
power MOSFETs, bootstrap switch, and an internal 5 VLDO  
in a space-saving PowerPAK MLP44-28L package.  
6 A continuous output current capability  
Integrated bootstrap switch  
Integrated 5 V/200 mA LDO with bypass logic  
Temperature compensated current limit  
The SiC414 and SiC424 are capable of operating with all  
ceramic solutions and switching frequencies up to 1 MHz.  
The programmable frequency, synchronous operation and  
selectable power-save allow operation at high efficiency  
across the full range of load current. The internal LDO may  
be used to supply 5 V for the gate drive circuits or it may be  
bypassed with an external 5 V for optimum efficiency and  
used to drive external n-channel MOSFETs or other loads.  
Additional features include cycle-by-cycle current limit,  
voltage soft-start, under-voltage protection, programmable  
over-current protection, soft shutdown and selectable  
power-save. The Vishay Siliconix SiC414 and SiC424 also  
provides an enable input and a power good output.  
Pseudo fixed-frequency adaptive on-time  
control  
•
•
•
•
•
•
•
•
•
All ceramic solution enabled  
Programmable input UVLO threshold  
Independent enable pin for switcher and LDO  
Selectable ultrasonic power-save mode (SiC414)  
Selectable power-save mode (SiC424)  
Internal soft-start and soft-shutdown  
1 % internal reference voltage  
Power good output and over voltage protection  
Material categorization: For definitions of compliance  
please see www.vishay.com/doc?99912  
PRODUCT SUMMARY  
Input Voltage Range  
Output Voltage Range  
Operating Frequency  
Continuous Output Current  
Peak Efficiency  
3 V to 28 V  
0.75 V to 5.5 V  
200 kHz to 1 MHz  
6 A  
APPLICATIONS  
•
•
•
•
•
•
Notebook, desktop, and server computers  
Digital HDTV and digital consumer applications  
Networking and telecommunication equipment  
Printers, DSL, and STB applications  
Embedded applications  
95 %  
Package  
PowerPAK MLP44-28L  
Point of load power supplies  
TYPICAL APPLICATION CIRCUIT AND PACKAGE OPTION  
LDO_EN  
EN/PSV (Tri-State)  
3.3 V  
VOUT  
PGOOD  
28 27 26 25 24 23 22  
VOUT  
FB  
21  
1
2
LX  
LX  
V5V  
AGND  
VOUT  
VIN  
20  
19  
18  
17  
PAD1  
AGND  
3
4
5
6
7
PGND  
PGND  
PAD3  
LX  
VIN  
PAD2  
VIN  
PGND  
P
VLDO  
BST  
GND 16  
15  
LX  
10 11 12 13 14  
8
9
Document Number: 63388  
S13-0248-Rev. B, 04-Feb-13  
For technical questions, contact: powerictechsupport@vishay.com  
This document is subject to change without notice.  
www.vishay.com  
1
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000  
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