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RT8097AHGE PDF预览

RT8097AHGE

更新时间: 2024-11-13 01:07:11
品牌 Logo 应用领域
立锜 - RICHTEK /
页数 文件大小 规格书
16页 1125K
描述
6V, 2A, 1MHz, CMCOT Synchronous Step-Down Converter

RT8097AHGE 数据手册

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RT8097A  
6V, 2A, 1MHz, CMCOT Synchronous Step-Down Converter  
General Description  
Features  
Efficiency Up to 95%  
The RT8097A is a simple, easy-to-use, 2A synchronous  
step-down DC-DC converter with an input supply voltage  
range of 2.7V to 6V. The device build-in an accurate 0.6V  
(typ.) reference voltage and integrates low RDS(ON) power  
MOSFETs to achieve high efficiency in a SOT-23-5 and  
SOT-23-6 packages.  
2A Converter With Built-In 100m/70mLow  
RDS(ON) Power FETs  
Input Supply Voltage Range : 2.7V to 6V  
Output Voltage Range : 0.6V to 3.4V  
Current Mode Constant On-Time (CMCOT)  
Control  
The RT8097A adopts Current Mode Constant On-Time  
(CMCOT) control architecture to provide an ultrafast  
transient response with few external components and to  
operate in nearly constant switching frequency over the  
line, load, and output voltage range. The RT8097A  
operates in automatic PSM that maintains high efficiency  
during light load operation.  
Ultrafast Transient Response  
No Needs For External Compensations  
Optimized for Low-ESR Ceramic Output  
Capacitors  
0.6V 1.5% High-Accuracy Feedback Reference  
Voltage  
The RT8097A senses low-side FETs current for a robust  
over-current protection. It features cycle-by-cycle current  
limit protection and prevent the device from the  
catastrophic damage in output short circuit, over current or  
inductor saturation. An internally adjustable soft-start  
function prevents inrush current during start-up. The  
device also includes input under-voltage lockout, output  
under-voltage protection, and over-temperature protection  
(thermal shutdown) to provide safe and smooth operation  
in all operating conditions. The RT8097A is offered in a  
SOT-23-5 and SOT-23-6 packages.  
LS FETs Protection for Robust Over-Current  
Protection  
Power Saving in Light Load  
Fixed Switching Frequency : 1MHz (typ.)  
Internally Soft-Start Function  
Monotonic Start-Up for Pre-Biased Output  
Input Under-Voltage Lockout (UVLO)  
Output Under-Voltage Protection (UVP) with  
Hiccup Mode  
Power Good Indication in SOT-23-6 Package  
Enable Control  
Available In SOT-23-5 and SOT-23-6 Packages  
Applications  
STB, Cable Modem, & xDSL Platforms  
LCD TV Power Supply & Metering Platforms  
General Purpose Point of Load (POL)  
Simplified Application Circuit  
L
RT8097A  
V
LX  
IN  
V
VIN  
OUT  
C
IN  
C
R1  
R2  
OUT  
EN  
PG*  
FB  
GND  
*For SOT-23-6 Package Only  
Copyright © 2018 Richtek Technology Corporation. All rights reserved.  
is a registered trademark of Richtek Technology Corporation  
DS8097A-09 December 2018  
www.richtek.com  
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