Document
TPS734xx
www.ti.com ........................................................................................................................................ SBVS089F – DECEMBER 2007 – REVISED FEBRUARY 2009
250mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low-Dropout Linear Regulator
FEATURES
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•2 250mA Low Dropout Regulator with EN • 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
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 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.
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 GND
EN
1 2 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
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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.
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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
TPS734xx
SBVS089F – DECEMBER 2007 – REVISED FEBRUARY 2009 ........................................................................................................................................ www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
PRODUCT TPS734xxyyyz
ORDERING INFORMATION(1)
VOUT (2)
XX is nominal output voltage (for example, 28 = 2.8V, 285 = 2.85V, 01 = Adjustable). YYY is package designator. Z is package quantity.
(1) For the most current package and ordering information see the Package Option Addendum at the end of this document, or see the TI website at www.ti.com.
(2) Output voltages from 1.0V to 3.6V in 50mV increments are available through the use of innovative factory EEPROM programming; minimum order quantities may apply. Contact factory for details and availability.
ABSOLUTE MAXIMUM RATINGS(1)
Over operating temperature range (unless otherwise noted).
PARAMETER VIN range VEN range VOUT range VFB range Peak output current Continuous total power dissipation Junction temperature range, TJ Storage junction temperature range, TSTG ESD rating, HBM ESD rating, CDM
TPS734xx
UNIT
–0.3 to +7.0
V
–0.3 to VIN +0.3 –0.3 to VIN +0.3 –0.3 to VFB (TYP) +0.3 Internally limited
V V V
See Dissipation Ratings Table
–55 to +150
°C
–55 to +150
°C
2 kV
500 V
(1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those specified is not implied.
DISSIPATION RATINGS
BOARD Low-K (1) High-K (2) Low-K (1) High-K (2)
PACKAGE DDC DDC DRV DRV
RθJC 90°C/W 90°C/W 20°C/W 20°C/W
RθJA 280°C/W 200°C/W 140°C/W 65°C/W
DERATING FACTOR ABOVE TA = +25°C
3.6mW/°C
5.0mW/°C
7.1mW/°C
15.4mW/°.