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EEU-FM1V151 PDF预览

EEU-FM1V151

更新时间： 2024-11-20 12:55:31
品牌 Logo 应用领域
威世 - VISHAY 稳压器
页数 文件大小 规格书
26页 648K
描述
microBUCK SiC403 6 A, 28 V Integrated Buck Regulator with Programmable LDO

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EEU-FM1V151 数据手册

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SiC403  
Vishay Siliconix  
microBUCK® SiC403  
6 A, 28 V Integrated Buck Regulator with Programmable LDO  
DESCRIPTION  
FEATURES  
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•
•
•
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High efficiency > 95 %  
The Vishay Siliconix SiC403 is an advanced stand-alone  
synchronous buck regulator featuring integrated power  
MOSFETs, bootstrap switch, and a programmable LDO in a  
space-saving MLPQ 5 x 5 - 32 pin package.  
6 A continuous output current capability  
Integrated bootstrap switch  
Programmable 200 mA LDO with bypass logic  
Temperature compensated current limit  
Pseudo fixed-frequency adaptive on-time control  
All ceramic solution enabled  
The SiC403 is 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  
Programmable input UVLO threshold  
Independent enable pin for switcher and LDO  
Selectable ultra-sonic power-save mode  
Programmable soft-start  
Soft-shutdown  
soft-start,  
under-voltage  
protection,  
programmable  
1 % internal reference voltage  
over-current protection, soft shutdown and selectable  
power-save. The Vishay Siliconix SiC403 also provides an  
enable input and a power good output.  
Power good output  
Under 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  
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Notebook, desktop, and server computers  
Digital HDTV and digital consumer applications  
Networking and telecommunication equipment  
Printers, DSL, and STB applications  
Embedded applications  
95 % at 300 kHz  
MLPQ 5 mm x 5 mm  
Package  
Point of load power supplies  
TYPICAL APPLICATION CIRCUIT  
3.3 V  
EN/PSV (Tri-State)  
P
GOOD  
LDO_EN  
V
OUT  
31 30 29 28 27 26 25  
32  
V
OUT  
LX  
LX  
FB  
24  
23  
22  
21  
20  
19  
18  
17  
1
V
OUT  
PAD 1  
2
3
4
5
6
7
8
V
P
DD  
GND  
GND  
A
GND  
A
P
GND  
PAD 3  
LX  
P
P
P
FBL  
GND  
GND  
V
IN  
PAD 2  
V
IN  
SS  
V
IN  
GND  
GND  
BST  
P
SiC403 (MLP 5 x 5-32L)  
Document Number: 66550  
S12-0628-Rev. C, 19-Mar-12  
For technical support, please contact: analogswitchtechsupport@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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