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TPS71921-22DRVT PDF预览

TPS71921-22DRVT

更新时间: 2024-11-29 07:04:51
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德州仪器 - TI 稳压器
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23页 833K
描述
Dual, 200mA Output, Low Noise, High PSRR Low-Dropout Linear Regulators

TPS71921-22DRVT 数据手册

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TPS718xx  
TPS719xx  
www.ti.com..................................................................................................................................................... SBVS088CFEBRUARY 2007REVISED MAY 2008  
Dual, 200mA Output, Low Noise, High PSRR  
Low-Dropout Linear Regulators  
1
FEATURES  
DESCRIPTION  
23  
Dual, 200mA High-Performance LDOs  
The TPS718xx and TPS719xx families of low-dropout  
(LDO) regulators offer a high power-supply rejection  
ratio (PSRR), low noise, fast start-up, and excellent  
line and load transient responses while consuming a  
very low 90µA (typical) at no load ground current with  
both LDOs enabled. The TPS719xx also provides an  
active pulldown circuit to quickly discharge output  
loads. The TPS718xx and TPS719xx are stable with  
ceramic capacitors and use an advanced BiCMOS  
fabrication process to yield a typical dropout voltage  
of 230mV at 200mA output loads. The TPS718xx and  
TPS719xx also use a precision voltage reference and  
feedback loop to achieve 3% overall accuracy over all  
load, line, process, and temperature variations. Both  
families of devices are fully specified from TJ = –40°C  
to +125°C and are offered in 2mm × 2mm SON-6 and  
6-ball Wafer Chip-Scale (WCSP) packages that are  
ideal for applications such as mobile handsets and  
WLAN that require good thermal dissipation while  
maintaining a very small footprint.  
Low Total Quiescent Current: 90µA with Both  
LDOs Enabled  
Low Noise: 70µVRMS/V  
Active Output Pulldown (TPS719xx)  
Independent Enables for Each LDO  
PSRR: 65dB at 1kHz, 45dB at 1MHz  
Available in Multiple Fixed-Output Voltage  
Combinations from 0.9V to 3.6V Using  
Innovative Factory EEPROM Programming  
Fast Start-Up Time: 160µs  
Over-Current, Over-Temperature and  
Under-Voltage Protection  
Low Dropout: 230mV at 200mA  
Stable with 1µF Ceramic Output Capacitor  
Available in 2mm × 2mm SON-6 and 6-Ball  
WCSP Packages  
APPLICATIONS  
Digital Cameras and Camera Modules  
Cellular Camera and TV Phones  
Wireless LAN, Bluetooth®  
Handheld Products  
TPS718xx, TPS719xx  
YZC Package  
TPS718Axx, TPS719Axx  
YZC Package  
2.7V to 6.5V  
0.9V to 3.6V  
TPS718xx, TPS719xx  
DRV Package  
VIN  
VOUT  
IN  
OUT1  
6-BALL WCSP  
(Top View)  
6-BALL WCSP  
(Top View)  
2mm x 2mm SON-6  
(Top View)  
1mF  
1mF  
TPS718xx  
TPS719xx  
C2  
B2  
A2  
C1  
B1  
A1  
A1  
B1  
C1  
A2  
B2  
C2  
On  
EN1  
EN2  
OUT1  
IN  
1
2
3
6
5
4
EN1  
GND  
EN2  
EN1  
GND  
EN2  
OUT1  
IN  
EN1  
GND  
EN2  
OUT1  
IN  
0.9V - 3.6V  
1mF  
Off  
VOUT  
OUT2  
GND  
On  
OUT2  
OUT2  
OUT2  
Off  
GND  
Typical Application Circuit  
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
3
Bluetooth is a registered trademark of Bluetooth SIG, Inc.  
All other 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 © 2007–2008, Texas Instruments Incorporated  

TPS71921-22DRVT 替代型号

型号 品牌 替代类型 描述 数据表
TPS71921-22DRVR TI

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