TPS734XX_16 Datasheet, PDF (1/20 Pages) Texas Instruments – 250mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low-Dropout Linear Regulator

TPS734xx
www.ti.com ........................................................................................................................................ SBVS089F – DECEMBER 2007 – REVISED FEBRUARY 2009
250mA, Low Quiescent Current, Ultra-Low Noise, High PSRR
Low-Dropout Linear Regulator
FEATURES
1
•2 250mA Low Dropout Regulator with EN
• Low I_Q: 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: 28µV_RMS
• 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
DESCRIPTION
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 T_J = –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.
APPLICATIONS
• WiFi, WiMax
• Printers
• Cellular Phones, SmartPhones
• Handheld Organizers, PDAs
TPS734xxDDC
TSOT23-5
(TOP VIEW)
TPS73401DDC
TSOT23-5
(TOP VIEW)
TPS734xxDRV
2mm x 2mm SON-6
(TOP VIEW)
TPS73401DRV
2mm x 2mm SON-6
(TOP VIEW)
IN 1
GND 2
EN 3
5 OUT
IN 1
GND 2
4 NR
EN 3
5
OUT
OUT 1
6 IN
NR 2 GND 5 N/C
GND 3
4 EN
4 FB
OUT 1
FB 2
GND 3
GND
6 IN
5 N/C
4 EN
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.
All trademarks are the property of their respective owners.
2
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