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TPS718XX_07

更新时间： 2024-11-27 04:48:39
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德州仪器 - TI 稳压器
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18页 326K
描述
Dual, 200mA Output, Low Noise, High PSRR Low-Dropout Linear Regulators in 2mm x 2mm SON Package

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TPS718XX_07 数据手册

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TPS718xx  
TPS719xx  
www.ti.com  
SBVS088A–FEBRUARY 2007–REVISED MARCH 2007  
Dual, 200mA Output, Low Noise, High PSRR  
Low-Dropout Linear Regulators in 2mm x 2mm SON Package  
FEATURES  
DESCRIPTION  
•
Dual, 200mA High-Performance LDOs  
The TPS718xx and TPS719xx families of  
low-dropout (LDO) regulators offer high  
a
•
Low Total Quiescent Current: 90µA with Both  
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 a 2mm  
× 2mm SON-6 package that is ideal for applications  
such as mobile handsets and WLAN that require  
good thermal dissipation while maintaining a very  
small footprint.  
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 Package  
APPLICATIONS  
•
•
•
•
Digital Cameras  
Cellular Camera Phones  
Wireless LAN, Bluetooth®  
Handheld Products  
2.7V - 6.5V  
0.9V - 3.6V  
1mF  
TPS718xx, TPS719xx  
DRV Package  
VIN  
VOUT  
IN  
OUT1  
TPS718xx  
TPS719xx  
2mm x 2mm SON  
(TOP VIEW)  
1mF  
On  
OUT1  
IN  
1
2
3
6
5
4
EN1  
GND  
EN2  
EN1  
0.9V - 3.6V  
1mF  
Off  
GND  
VOUT  
OUT2  
OUT2  
On  
EN2  
Off  
GND  
Typical Application Circuit  
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.  
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, Texas Instruments Incorporated  
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