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RT5797B PDF预览

RT5797B

更新时间: 2024-11-10 17:01:35
品牌 Logo 应用领域
立锜 - RICHTEK /
页数 文件大小 规格书
16页 826K
描述
3A, 1MHz, 6V CMCOT Synchronous Step-Down Converter

RT5797B 数据手册

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RT5797B  
3A, 1MHz, 6V CMCOT Synchronous Step-Down Converter  
General Description  
Features  
Efficiency Up to 95%  
The RT5797B is a high efficiency synchronous step-  
down DC-DC converter. Its input voltage range is from  
2.7V to 6V and provides an adjustable regulated output  
voltage from 0.6V to 3.4V while delivering up to 3A of  
output current.  
R  
100mHS / 70mLS  
DSON  
V Range 2.7V to 6V  
IN  
V  
0.6V with 1% Accuracy at 25C  
REF  
CMCOTControl Loop Design for Best  
Transient Response, Robust Loop Stability with  
The internal synchronous low on-resistance power  
switches increase efficiency and eliminate the need for  
an external Schottky diode. The Current Mode  
Constant-On-time (CMCOT) operation with internal  
compensation allows the transient response to be  
optimized over a wide range of loads and output  
capacitors. The RT5797B is available in the WDFN-8L  
2x2 package.  
Low-ESR (MLCC) C  
OUT  
Soft-Start 1.2ms  
Applications  
STB, Cable Modem, & xDSL Platforms  
LCD TV Power Supply & Metering Platforms  
General Purpose Point of Load (POL)  
Ordering Information  
RT5797B  
Marking Information  
Package Type  
QW : WDFN-8L 2x2 (W-Type)  
RT5797BLGQW  
2S : Product Code  
W : Date Code  
Lead Plating System  
2SW  
G : Green (Halogen Free and Pb Free)  
UVP Option  
H : Hiccup  
L : Latched-Off  
RT5797BHGQW  
2T : Product Code  
W : Date Code  
Note :  
2TW  
Richtek products are :  
RoHS compliant and compatible with the current  
requirements of IPC/JEDEC J-STD-020.  
Suitable for use in SnPb or Pb-free soldering processes.  
Simplified Application Circuit  
RT5797B  
L
V
IN  
LX  
V
OUT  
VIN  
C
IN  
C
R1  
R2  
EN  
PG  
OUT  
FB  
SGND PGND  
Copyright © 2022 Richtek Technology Corporation. All rights reserved.  
is a registered trademark of Richtek Technology Corporation.  
DS5797B-06  
April 2022  
www.richtek.com  
1

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