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CRCW25123R01FKTA PDF预览

CRCW25123R01FKTA

更新时间: 2024-11-16 12:55:15
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威世 - VISHAY 稳压器
页数 文件大小 规格书
19页 715K
描述
5 V, 3 A Current-Mode Constant On-Time Synchronous Buck Regulator

CRCW25123R01FKTA 数据手册

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SiP12107  
Vishay Siliconix  
www.vishay.com  
5 V, 3 A Current-Mode Constant On-Time  
Synchronous Buck Regulator  
DESCRIPTION  
FEATURES  
Halogen-free According to IEC 61249-2-21  
Definition  
• 2.8 V to 5.5 V input voltage  
The SiP12107 is a high frequency current-mode constant  
on-time (CM-COT) synchronous buck regulator with  
integrated high-side and low-side power MOSFETs. Its  
power stage is capable of supplying 3 A continuous current  
at 4 MHz switching frequency. This regulator produces an  
adjustable output voltage down to 0.6 V from 2.8 V to 5.5 V  
input rail to accommodate a variety of applications,  
including computing, consumer electronics, telecom, and  
industrial.  
• Adjustable output voltage down to 0.6 V  
• 3 A continuous output current  
• Programmable switching frequency up to 4 MHz  
• 95 % peak efficiency  
• Supports all ceramic capacitors No external ESR required  
• Ultrafast transient response  
SiP12107’s CM-COT architecture delivers ultra-fast  
transient response with minimum output capacitance and  
tight ripple regulation at very light load. No ESR or external  
ESR network is required for loop stability purpose. The  
device also incorporates a power saving scheme that  
significantly increases light load efficiency.  
• Selectable power saving mode or force current mode  
1 % accuracy  
• Pulse-by-pulse current limit  
• Scalable with SiP12108 - 5A  
• Fully protected with OTP, SCP, UVP, OVP  
• PGood Indicator  
The regulator integrates a full protection feature set,  
including output overvoltage protection (OVP), output under  
voltage protection (UVP) and thermal shutdown (OTP). It  
also has UVLO for input rail and internal soft-start ramp.  
• Compliant to RoHS Directive 2011/65/EU  
APPLICATIONS  
The SiP12107 is available in lead (Pb)-free power enhanced  
MLP-16L package in 3 mm x 3 mm dimension.  
• Notebook computers  
• Desktop PCs and servers  
• Handheld devices  
• POLs for telecom  
• Consumer electronics  
• Industrial and automation  
TYPICAL APPLICATION CIRCUIT AND PACKAGE OPTIONS  
PWR_SAVE_MODE  
ENABLE  
POWER GOOD  
PGD  
EN AUTO  
LX  
VOUT  
INPUT = 2.8 V to 5.5 V  
VIN  
VOUT  
VFB  
AVIN  
PGND  
GMO  
RON  
AGND  
Fig. 1 - Typical Application Circuit for SiP12107  
S12-0412-Rev. B, 20-Feb-12  
Document Number: 63395  
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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