1

FEATURES

DESCRIPTION

APPLICATIONS

TPS734xxDDC

TSOT23-5

(TOPVIEW)

OUT

NR

IN

GND

EN

1

2

3

5

4

TPS73401DDC

TSOT23-5

(TOPVIEW)

OUT

FB

IN

GND

EN

1

2

3

5

4

TPS734xxDRV

2mmx2mmSON-6

(TOPVIEW)

IN

N/C

EN

6

5

4

OUT

NR

GND

1

2

3

GND

TPS73401DRV

2mmx2mmSON-6

(TOPVIEW)

IN

N/C

EN

6

5

4

OUT

FB

GND

1

2

3

GND

TPS734xx

www.ti.com ........................................................................................................................................ SBVS089F – DECEMBER 2007 – REVISED FEBRUARY 2009

250mA, Low Quiescent Current, Ultra-Low Noise, High PSRR

Low-Dropout Linear Regulator

2

• 250mA Low Dropout Regulator with EN

The

TPS734xx

family

of

low-dropout

(LDO),

low-power

linear

regulators

offers

excellent

ac

• Low I

Q: 44µA

performance with very low ground current. High

• Multiple Output Voltage Versions Available:

power-supply rejection ratio (PSRR), low noise, fast

–

Fixed Outputs of 1.0V to 4.3V Using

start-up,

and

excellent

line

and

load

transient

Innovative Factory EEPROM Programming

response are provided while consuming a very low

44

µA (typical) ground current. The TPS734xx is

–

Adjustable Outputs from 1.25V to 6.2V

stable with ceramic capacitors and uses an advanced

• High PSRR: 60dB at 1kHz

BiCMOS fabrication process to yield a typical dropout

• Ultra-low Noise: 28µV

RMS

voltage of 125mV at 250mA output. The TPS734xx

uses a precision voltage reference and feedback loop

• Fast Start-Up Time: 45µs

to achieve overall accuracy of 2% over all load, line,

• Stable with a Low-ESR, 2.0µF Typical Output

process, and temperature variations. It

is

fully

Capacitance

specified from TJ = –40°C to +125°C and is offered in

• Excellent Load/Line Transient Response

low-profile ThinSOT-23, 2mm × 2mm SON, and 3mm

x 3mm SON packages that are ideal for wireless

• 2% Overall Accuracy (Load/Line/Temp)

handsets, printers, and WLAN cards.

• Very Low Dropout: 125mV at 250mA

• ThinSOT-23, 2mm × 2mm SON-6, and 3mm x

3mm SON-8 Packages

• WiFi, WiMax

• Printers

• Cellular Phones, SmartPhones

• Handheld Organizers, PDAs

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.

Copyright © 2007–2009, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.