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LM20323MH/NOPB PDF预览

LM20323MH/NOPB

更新时间： 2024-09-24 11:11:31
品牌 Logo 应用领域
德州仪器 - TI 稳压器
页数 文件大小 规格书
30页 1399K
描述
4.5-36V 3A 电流模式同步降压稳压器 | PWP | 20 | -40 to 125

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中文翻译

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LM20323MH/NOPB 数据手册

 浏览型号LM20323MH/NOPB的Datasheet PDF文件第2页浏览型号LM20323MH/NOPB的Datasheet PDF文件第3页浏览型号LM20323MH/NOPB的Datasheet PDF文件第4页浏览型号LM20323MH/NOPB的Datasheet PDF文件第5页浏览型号LM20323MH/NOPB的Datasheet PDF文件第6页浏览型号LM20323MH/NOPB的Datasheet PDF文件第7页 
LM20323  
www.ti.com  
SNVS557C –MAY 2008–REVISED APRIL 2013  
LM20323 36V, 3A 500 kHz Synchronous Buck Regulator  
Check for Samples: LM20323  
1
FEATURES  
APPLICATIONS  
2
•
•
•
•
4.5V to 36V Input Voltage Range  
•
•
•
Simple to Design, high Efficiency Point of  
Load Regulation from a 4.5V to 36V Bus  
3A Output Current, 5.2A Peak Current  
130 mΩ/110 mΩ Integrated Power MOSFETs  
High Performance DSPs, FPGAs, ASICs and  
Microprocessors  
93% Peak Efficiency with Synchronous  
Rectification  
Communications Infrastructure, Automotive  
DESCRIPTION  
•
•
1.5% Feedback Voltage Accuracy  
The LM20323 is a full featured 500kHz synchronous  
buck regulator capable of delivering up to 3A of load  
current. The current mode control loop is externally  
compensated with only two components, offering both  
high performance and ease of use. The device is  
optimized to work over the input voltage range of  
4.5V to 36V making it well suited for high voltage  
systems.  
Current Mode Control, Selectable  
Compensation  
•
•
•
•
Fixed 500 kHz Switching Frequency  
Adjustable Output Voltage Down to 0.8V  
Compatible with Pre-biased Loads  
Programmable Soft-start with External  
Capacitor  
The device features internal Over Voltage Protection  
(OVP) and Over Current Protection (OCP) circuits for  
increased system reliability. A precision Enable pin  
and integrated UVLO allows the turn-on of the device  
to be tightly controlled and sequenced. Startup inrush  
currents are limited by both an internally fixed and  
externally adjustable soft-start circuit. Fault detection  
and supply sequencing are possible with the  
integrated power good (PGOOD) circuit.  
•
•
•
Precision Enable Pin with Hysteresis  
Integrated OVP, UVLO, PGOOD  
Internally Protected with Peak Current Limit,  
Thermal Shutdown and Restart  
•
Accurate Current Limit Minimizes Inductor  
Size  
•
•
Non-linear Current Mode Slope Compensation  
20-Pin HTSSOP Exposed Pad Package  
Simplified Application Circuit  
LM20323  
BOOT  
C
BOOT  
L
V
SW  
V
IN  
OUT  
VIN  
D1  
(Optional)  
C
IN  
R
FB1  
C
OUT  
EN  
FB  
R
FB2  
COMP  
PGOOD  
SS/TRK  
AGND  
VCC  
GND  
R
C
C1  
C
VCC  
C1  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
All trademarks are the property of their respective owners.  
2
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2008–2013, Texas Instruments Incorporated  
1234567...30

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LM20323MH/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LM20323MHE/NOPB TI

类似代替

 4.5-36V 3A 电流模式同步降压稳压器 | PWP | 20 | -40 to 12
LM20323MHX/NOPB TI

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 4.5-36V 3A 电流模式同步降压稳压器 | PWP | 20 | -40 to 12

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