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TPS73801

更新时间： 2024-11-21 12:47:11
品牌 Logo 应用领域
德州仪器 - TI 稳压器
页数 文件大小 规格书
21页 711K
描述
1.0-A LOW-NOISE FAST-TRANSIENT-RESPONSE LOW-DROPOUT REGULATOR

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TPS73801 数据手册

 浏览型号TPS73801的Datasheet PDF文件第2页浏览型号TPS73801的Datasheet PDF文件第3页浏览型号TPS73801的Datasheet PDF文件第4页浏览型号TPS73801的Datasheet PDF文件第5页浏览型号TPS73801的Datasheet PDF文件第6页浏览型号TPS73801的Datasheet PDF文件第7页 
TPS73801  
www.ti.com  
SLVS915A –FEBRUARY 2010–REVISED JULY 2012  
1.0-A LOW-NOISE FAST-TRANSIENT-RESPONSE LOW-DROPOUT REGULATOR  
Check for Samples: TPS73801  
1
FEATURES  
APPLICATIONS  
•
•
•
•
•
•
•
•
•
Optimized for Fast Transient Response  
Output Current: 1.0 A  
•
•
•
3.3-V to 2.5-V Logic Power Supplies  
Post Regulator for Switching Supplies  
Portable/Battery-Powered Equipment.  
Dropout Voltage: 300 mV  
Low Noise: 45 µVRMS (10 Hz to 100 kHz)  
1-mA Quiescent Current  
DCQ PACKAGE  
(TOP VIEW)  
No Protection Diodes Needed  
5
EN  
4
FB  
Controlled Quiescent Current in Dropout  
Adjustable Output Voltage: 1.21 V to 20 V  
6
3
2
1
GND  
OUT  
IN  
Less Than 1-µA Quiescent Current in  
Shutdown  
•
•
•
•
•
Stable with 10-µF Output Capacitor  
Stable with Ceramic Capacitors  
Reverse-Battery Protection  
No Reverse Current  
Thermal Limiting  
DESCRIPTION/ORDERING INFORMATION  
The TPS73801 is a low-dropout (LDO) regulator optimized for fast transient response. The device can supply  
1.0 A of output current with a dropout voltage of 300 mV. Operating quiescent current is 1 mA, dropping to less  
than 1 µA in shutdown. Quiescent current is well controlled; it does not rise in dropout as it does with many other  
regulators. In addition to fast transient response, the TPS73801 regulators have very low output noise, which  
makes them ideal for sensitive RF supply applications.  
Output voltage range is from 1.21 V to 20 V. The TPS73801 regulators are stable with output capacitors as low  
as 10 µF. Small ceramic capacitors can be used without the necessary addition of ESR, as is common with other  
regulators. Internal protection circuitry includes reverse-battery protection, current limiting, thermal limiting, and  
reverse-current protection. The devices are available as an adjustable device with a 1.21-V reference voltage.  
The TPS73801 regulators are available in the 6-pin TO-223 (DCQ) packages.  
ORDERING INFORMATION(1)  
VOUT  
(TYP)  
TA  
PACKAGE(2)  
ORDERABLE PART NUMBER  
TOP-SIDE MARKING  
–40°C to 125°C  
Adjustable  
TO-223 – DCQ Reel of 2500  
TPS73801DCQR  
PS73801  
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI  
web site at www.ti.com.  
(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.  
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.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2010–2012, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
 
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