TPS73433-Q1 Datasheet, PDF (1/13 Pages) Texas Instruments – 250mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low-Dropout Linear Regulator

TPS73433-Q1
TPS73401-Q1
www.ti.com
SBVS185 – DECEMBER 2011
250mA, Low Quiescent Current, Ultra-Low Noise, High PSRR
Low-Dropout Linear Regulator
Check for Samples: TPS73433-Q1, TPS73401-Q1
FEATURES
1
• Qualified for Automotive Applications
• 250mA Low Dropout Regulator with EN
• Low I_Q: 44μA
• Multiple Output Voltage Versions Available:
– Fixed 3.3V Outputs
– 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)
• ThinSOT-23 Package
DESCRIPTION
The TPS734xx-Q1 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-Q1 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-Q1 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_A = –40°C to +105°C and is
offered in a low-profile ThinSOT-23 package that are
ideal for wireless handsets, printers, and WLAN
cards.
TPS73433TDDCRQ1
TSOT23-5
(TOP VIEW)
TPS73401TDDCRQ1
TSOT23-5
(TOP VIEW)
IN 1
GND 2
EN 3
5 OUT
IN
1
GND 2
4 NR
EN
3
5 OUT
4 FB
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.
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 © 2011, Texas Instruments Incorporated