LT3032

1

3032f

TYPICAL APPLICATION

FEATURES

DESCRIPTION

Dual 150mA

Positive/Negative Low Noise

Low Dropout Linear Regulator

dropout voltage linear regulator. Each regulator delivers

up to 150mA with a typical 300mV dropout voltage. Each

regulator’s quiescent current is low (30μA operating and

<3μA in shutdown) and well-controlled in dropout, making

it an excellent choice for battery-powered circuits.

Another key feature of the LT3032 is low output noise.

Adding an external 10nF bypass capacitor to each regulator

100kHz bandwidth. The LT3032 is stable with minimum

output capacitors of 2.2μF. The regulators do not require

the addition of ESR as is common with other regulators.

Internal protection circuitry includes reverse output prot-

ection, current limiting, and thermal limiting. Each regulator

is offered as an adjustable output device with an output

voltage down to the ±1.22V reference voltages.

The LT3032 is available in a unique low profile 14-lead

4mm × 3mm × 0.75mm DFN package with exposed back-

side pads for each regulator, allowing optimum thermal

performance.

Dual Polarity Low Noise 150mA Power Supply

APPLICATIONS

DFN Package

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear

Technology Corporation. All other trademarks are the property of their respective owners.

10μF

10μF

10μF

0.01μF

0.01μF

768k

768k

249k

249k

10μF

5.4V TO

20V

5V OUT AT 150mA

–5V OUT AT –150mA

–5.4V TO

–20V

<0.25V = OFF

>2V = ON

SHDNP

SHDNN

OUTP

INP

INN

ADJP

LT3032

BYPP

GND

BYPN

ADJN

OUTN

3032 TA01

OUTP

100μV/DIV

OUTN

100μV/DIV

1mS/DIV

3032 TA02a

10Hz to 100kHz Output Noise