Actual Size

(3 mm x 3 mm)

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FEATURES

DESCRIPTION

APPLICATIONS

EN1

FB1/NC

EN2

FB2/NC

NR

10

9

8

7

6

IN

NC

OUT1

OUT2

GND

1

2

3

4

5

DRC PACKAGE

3mm x 3mm SON

(TOP VIEW)

80

70

60

50

40

30

20

10

0

10

100

1k

10k

100k

1M

10M

Frequency (Hz)

PSRR (RIPPLE REJECTION) vs FREQUENCY

V

C

C

I

I

TPS71202, TPS71219

TPS71229, TPS71247

TPS71256, TPS71257

SBVS049B – MAY 2004 – REVISED MARCH 2005

Dual 250 mA Output, UltraLow Noise, High PSRR,

Low-Dropout Linear Regulator

•

Dual 250 mA High-Performance RF LDOs

The TPS712xx family of low-dropout (LDO) voltage

regulators is tailored to noise-sensitive and RF appli-

•

Available in Fixed and Adjustable

cations. These products feature dual 250 mA LDOs

Voltage Options (1.2 V to 5.5 V)

with ultralow noise, high power-supply rejection ratio

•

High PSRR: 65 dB at 10 kHz

(PSRR), and fast transient and start-up response.

•

UltraLow Noise: 32 µVrms

Each regulator output is stable with low-cost 2.2 µF

ceramic output capacitors and features very low

•

Fast Start-Up Time: 60 µs

dropout voltages (125 mV typical at 250 mA). Each

•

Stable with 2.2 µF Ceramic Capacitor

regulator achieves fast start-up times (approximately

•

Excellent Load/Line Transient Response

60 µs with a 0.001 µF bypass capacitor) while

consuming very low quiescent current (300 µA typical

•

Very Low Dropout Voltage: 125 mV at 250 mA

with both outputs enabled). When the device is

•

Independent Enable Pins

placed in standby mode, the supply current is re-

•

Thermal Shutdown and Independent Current

duced to less than 0.3 µA typical. Each regulator

Limit

exhibits approximately 32 µVrms of output voltage

•

Available in Thermally-Enhanced SON

reduction (NR) capacitor. Applications with analog

Package: 3mm x 3mm x 1mm

components that are noise-sensitive, such as port-

able RF electronics, will benefit from high PSRR, low

noise, and fast line and load transient features. The

•

Cellular and Cordless Phones

TPS712 family is offered in a thin 3mm x 3mm SON

•

Wireless PDA/Handheld Products

package and is fully specified from -40°C to +125°C

•

PCMCIA/Wireless LAN Applications

•

Digital Camera/Camcorder/Internet Audio

•

DSP/FPGA/ASIC/Controllers and Processors

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.

Copyright © 2004–2005, 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.