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TPS734XX_V01

更新时间： 2024-11-27 02:50:55
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
23页 1889K
描述
250mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low-Dropout Linear Regulator

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TPS734XX_V01 数据手册

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TPS734xx  
www.ti.com ........................................................................................................................................ SBVS089F–DECEMBER 2007–REVISED FEBRUARY 2009  
250mA, Low Quiescent Current, Ultra-Low Noise, High PSRR  
Low-Dropout Linear Regulator  
1
FEATURES  
DESCRIPTION  
2
•
250mA Low Dropout Regulator with EN  
The TPS734xx family of low-dropout (LDO),  
low-power linear regulators offers excellent ac  
performance with very low ground current. High  
power-supply rejection ratio (PSRR), low noise, fast  
start-up, and excellent line and load transient  
response are provided while consuming a very low  
44µA (typical) ground current. The TPS734xx is  
stable with ceramic capacitors and uses an advanced  
BiCMOS fabrication process to yield a typical dropout  
voltage of 125mV at 250mA output. The TPS734xx  
uses a precision voltage reference and feedback loop  
to achieve overall accuracy of 2% over all load, line,  
process, and temperature variations. It is fully  
specified from TJ = –40°C to +125°C and is offered in  
low-profile ThinSOT-23, 2mm × 2mm SON, and 3mm  
x 3mm SON packages that are ideal for wireless  
handsets, printers, and WLAN cards.  
•
•
Low IQ: 44µA  
Multiple Output Voltage Versions Available:  
–
Fixed Outputs of 1.0V to 4.3V Using  
Innovative Factory EEPROM Programming  
–
Adjustable Outputs from 1.25V to 6.2V  
•
•
•
•
High PSRR: 60dB at 1kHz  
Ultra-low Noise: 28µVRMS  
Fast Start-Up Time: 45µs  
Stable with a Low-ESR, 2.0µF Typical Output  
Capacitance  
•
•
•
•
Excellent Load/Line Transient Response  
2% Overall Accuracy (Load/Line/Temp)  
Very Low Dropout: 125mV at 250mA  
ThinSOT-23, 2mm × 2mm SON-6, and 3mm x  
3mm SON-8 Packages  
APPLICATIONS  
•
•
•
•
WiFi, WiMax  
Printers  
Cellular Phones, SmartPhones  
Handheld Organizers, PDAs  
TPS734xxDDC  
TSOT23-5  
TPS73401DDC  
TSOT23-5  
TPS734xxDRV  
2mm x 2mm SON-6  
(TOP VIEW)  
TPS73401DRV  
2mm x 2mm SON-6  
(TOP VIEW)  
(TOP VIEW)  
(TOP VIEW)  
OUT  
NR  
1
2
3
OUT  
FB  
1
2
3
6
5
4
IN  
6
5
4
IN  
5
4
5
4
1
2
3
1
2
3
IN  
GND  
EN  
OUT  
FB  
IN  
GND  
EN  
OUT  
NR  
GND  
GND  
N/C  
EN  
N/C  
EN  
GND  
GND  
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 © 2007–2009, Texas Instruments Incorporated  
1234567...23

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