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TPS7A37 PDF预览

TPS7A37

更新时间: 2024-10-04 12:27:07
品牌 Logo 应用领域
德州仪器 - TI 稳压器
页数 文件大小 规格书
24页 1082K
描述
1% High-Accuracy, 1-A, Low-Dropout Regulator with Reverse Current Protection

TPS7A37 数据手册

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TPS7A37  
www.ti.com  
SBVS220 MARCH 2013  
1% High-Accuracy, 1-A, Low-Dropout Regulator  
with Reverse Current Protection  
1
FEATURES  
DESCRIPTION  
The TPS7A37xx family of linear low-dropout (LDO)  
voltage regulators uses an NMOS pass element in a  
voltage-follower configuration. This topology is  
relatively insensitive to output capacitor value and  
ESR, allowing a wide variety of load configurations.  
Load transient response is excellent, even with a  
small 1.0-μF ceramic output capacitor. The NMOS  
topology also allows very low dropout.  
2
Stable with 1.0 μF or Larger Ceramic Output  
Capacitor  
Input Voltage Range: 2.2 V to 5.5 V  
Ultralow Dropout Voltage:  
200 mV max at 1 A  
Excellent Load Transient Response—Even  
with Only 1.0-μF Output Capacitor  
The TPS7A37xx family uses an advanced BiCMOS  
process to yield high precision while delivering very  
low dropout voltages and low ground pin current.  
Current consumption, when not enabled, is under 20  
nA and ideal for portable applications. These devices  
are protected by thermal shutdown and foldback  
current limit.  
NMOS Topology Delivers Low Reverse  
Leakage Current  
Excellent Accuracy:  
0.23% Nominal Accuracy  
1% Overall Accuracy Over Line, Load, and  
Temperature  
Less Than 20 nA typical IQ in Shutdown Mode  
TYPICAL APPLICATION CIRCUITS  
Thermal Shutdown and Current Limit for Fault  
Protection  
Optional  
VIN  
VOUT  
1.0 mF  
IN  
OUT  
TPS7A3701  
APPLICATIONS  
EN  
GND  
FB  
Point of Load Regulation for DSPs, FPGAs,  
ASICs, and Microprocessors  
ON  
OFF  
Post-Regulation for Switching Supplies  
Portable/Battery-Powered Equipment  
VIN  
VOUT  
IN  
OUT  
TPS7A37xx  
EN  
GND  
DRV PACKAGE(1)  
2-mm ´ 2-mm SON  
(TOP VIEW)  
ON  
OFF  
OUT  
NR/FB  
GND  
1
2
3
6
5
4
IN  
N/C  
EN  
(1) Power dissipation may limit operating  
range. Check Thermal Information table.  
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.  
2
All trademarks are the property of their respective owners.  
PRODUCT PREVIEW information concerns products in the  
formative or design phase of development. Characteristic data and  
other specifications are design goals. Texas Instruments reserves  
the right to change or discontinue these products without notice.  
Copyright © 2013, Texas Instruments Incorporated  

TPS7A37 替代型号

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