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TPS73701_13 PDF预览

TPS73701_13

更新时间: 2024-09-15 12:16:19
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德州仪器 - TI 稳压器
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31页 1298K
描述
1A Low-Dropout Regulator with Reverse Current Protection

TPS73701_13 数据手册

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TPS737xx  
www.ti.com  
SBVS067O JANUARY 2006REVISED JUNE 2012  
1A Low-Dropout Regulator  
with Reverse Current Protection  
1
FEATURES  
DESCRIPTION  
The TPS737xx 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 1.0μF ceramic output capacitor. The NMOS  
topology also allows very low dropout.  
2
Stable with 1.0μF or Larger Ceramic Output  
Capacitor  
Input Voltage Range: 2.2V to 5.5V  
Ultra-Low Dropout Voltage: 130mV typ at 1A  
Excellent Load Transient Response—Even  
With Only 1.0μF Output Capacitor  
NMOS Topology Delivers Low Reverse  
Leakage Current  
The TPS737xx 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  
20nA and ideal for portable applications. These  
devices are protected by thermal shutdown and  
foldback current limit.  
1.0% Initial Accuracy  
3% Overall Accuracy Over Line, Load, and  
Temperature  
Less Than 20nA typical IQ in Shutdown Mode  
Thermal Shutdown and Current Limit for Fault  
Protection  
DRB PACKAGE  
3mm x 3mm SON  
(TOP VIEW)  
Available in Multiple Output Voltage Versions  
Adjustable Output: 1.20V to 5.5V  
OUT  
N/C  
1
2
3
4
8
7
6
5
IN  
Custom Outputs Available Using Factory  
Package-Level Programming  
N/C  
N/C  
EN  
NR/FB  
GND  
APPLICATIONS  
Point of Load Regulation for DSPs, FPGAs,  
ASICs, and Microprocessors  
DCQ PACKAGE  
SOT223  
Post-Regulation for Switching Supplies  
Portable/Battery-Powered Equipment  
(TOP VIEW)  
DRV PACKAGE(1)  
2mm x 2mm SON  
(TOP VIEW)  
6
3
TAB IS GND  
Optional  
OUT  
NR/FB  
GND  
1
2
3
6
5
4
IN  
VIN  
VOUT  
1.0mF  
IN  
OUT  
FB  
N/C  
EN  
1
2
4
5
TPS737xx  
EN  
GND  
IN  
ON  
GND  
EN  
OFF  
OUT NR/FB  
(1) Power dissipation may limit operating  
range. Check Thermal Information table.  
Typical Application Circuit  
space  
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.  
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 © 2006–2012, Texas Instruments Incorporated  

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