2

1

3

4

7

8

6

5

FB

NC

GND

OUT

EN

NR/SS

DNC

IN

DGNPACKAGE

3mm

5mmMSOP-8PowerPAD

(TOPVIEW)

´

TPS7A49

IN

+18V

OUT

EN

GND

-18V

TPS7A30

IN

OUT

EN

GND

EVM

+15V

-15V

TPS7A49xx

www.ti.com

SBVS121B – AUGUST 2010 – REVISED JANUARY 2010

+36V, +150mA, Ultralow-Noise, Positive LINEAR REGULATOR

1

FEATURES

DESCRIPTION

23

•

Input Voltage Range: +3V to +36V

The TPS7A49xx series of devices are positive,

•

Noise:

PSRR) linear regulators capable of sourcing a load of

–

150mA.

–

These

linear

regulators

include

a

CMOS

•

Power-Supply Ripple Rejection:

logic-level-compatible

enable

pin

and

–

72dB (120Hz)

capacitor-programmable soft-start function that allows

for customized power-management schemes. Other

–

≥ 52dB (10Hz to 400kHz)

features available include built-in current limit and

•

Adjustable Output: +1.194V to +33V

thermal shutdown protection to safeguard the device

•

Output Current: 150mA

and system during fault conditions.

•

Dropout Voltage: 260mV at 100mA

The TPS7A49xx family is designed using bipolar

•

Stable with Ceramic Capacitors

≥ 2.2mF

technology,

and

is

ideal

for

high-accuracy,

high-precision

instrumentation

applications

where

•

CMOS Logic-Level-Compatible Enable Pin

clean voltage rails are critical to maximize system

•

Built-In, Fixed, Current-Limit and Thermal

performance. This design makes it an excellent

Shutdown Protection

choice

to

power

operational

amplifiers,

•

Available in High Thermal Performance

analog-to-digital converters (ADCs), digital-to-analog

MSOP-8 PowerPAD™ Package

converters

(DACs),

and

other

high-performance

analog circuitry.

•

Operating Tempature Range: –40°C to +125°C

In addition, the TPS7A49xx family of linear regulators

APPLICATIONS

is suitable for post dc/dc converter regulation. By

filtering out the output voltage ripple inherent to dc/dc

•

Supply Rails for Op Amps, DACs, ADCs, and

switching conversion, maximum system performance

Other High-Precision Analog Circuitry

is provided in sensitive instrumentation, test and

•

Audio

measurement, audio, and RF applications.

•

Post DC/DC Converter Regulation and Ripple

Filtering

For applications where both positive and negative

high-performance rails are required, consider TI’s

•

Test and Measurement

TPS7A30xx

family

of

negative

high-voltage,

•

RX, TX, and PA Circuitry

ultralow-noise linear regulators as well.

•

Industrial Instrumention

•

Base Stations and Telecom Infrastrucure

Typical Application

Post DC/DC Converter Regulation for

High-Performace Analog Circuitry

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

PowerPAD is a trademark of Texas Instruments.

3

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2010, 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.