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TLV71730PDBVR PDF预览

TLV71730PDBVR

更新时间： 2024-11-15 11:44:23
品牌 Logo 应用领域
德州仪器 - TI 稳压器便携式便携式设备
页数 文件大小 规格书
23页 837K
描述
150-mA, Low-Dropout Regulator with Foldback Current Limit for Portable Devices

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TLV71730PDBVR 数据手册

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TLV717xx  
TLV717xxP  
www.ti.com  
SBVS176A –OCTOBER 2011–REVISED APRIL 2012  
150-mA, Low-Dropout Regulator with Foldback Current Limit for Portable Devices  
Check for Samples: TLV717xx, TLV717xxP  
1
FEATURES  
DESCRIPTION  
The TLV717xx series of low-dropout (LDO) linear  
regulators are low quiescent current LDOs with  
excellent line and load transient performance and are  
designed for power-sensitive applications. These  
devices provide a typical accuracy of 0.5%.  
2
•
Very Low Dropout: 215 mV at 150 mA  
Accuracy: 0.5% (typical)  
Low IQ: 35 µA  
•
•
•
Available in Fixed-Output Voltages:  
1.2 V to 5.0 V(1)  
The TLV717xx series offer current foldback that  
throttles down the output current with a decrease in  
load resistance. The typical value at which current  
foldback initiates is 350 mA; the typical value of the  
output short current limit value is 40 mA.  
•
High PSRR:  
–
–
70 dB at 1 kHz  
50 dB at 1 MHz  
•
•
Stable with Effective Output Capacitance:  
0.1 µF(2)  
Furthermore, these devices are stable with an  
effective output capacitance of only 0.1 µF. This  
feature enables the use of cost-effective capacitors  
that have higher bias voltages and temperature  
derating. The devices regulate to specified accuracy  
with no output load.  
Foldback Current Limit  
•
(1)  
Package: 1-mm × 1-mm DQN  
See the Package Option Addendum at the end of this  
document for a complete list of available voltage options.  
(2)  
The TLV717xx series is available in a 1-mm × 1-mm  
DQN package that makes them ideal for hand-held  
applications. The TLV717xxP provides an active pull-  
down circuit to quickly discharge output loads.  
See the Input and Output Capacitor Requirements section in  
the Application Information for more details.  
APPLICATIONS  
•
•
•
Wireless Handsets, Smart Phones, PDAs  
MP3 Players  
Typical Application Circuit  
VIN  
VOUT  
IN  
OUT  
Other Hand-Held Products  
1 mF  
CIN  
COUT  
Ceramic  
TLV717xx  
TLV717xx Series  
1-mm x 1-mm DQN  
(Bottom View)  
On  
EN  
Off  
EN  
IN  
GND  
GND  
OUT  
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 © 2011–2012, Texas Instruments Incorporated  
 
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