LT3013

1

3013fe

TYPICAL APPLICATION

DESCRIPTION

250mA, 4V to 80V

Low Dropout Micropower

Linear Regulator with PWRGD

linear regulator. The device is capable of supplying 250mA

of output current with a dropout voltage of 400mV. Designed

for use in battery-powered or high voltage systems, the low

quiescent current (65μA operating and 1μA in shutdown)

makes the LT3013 an ideal choice. Quiescent current is

also well controlled in dropout.

Other features of the LT3013 include a PWRGD flag to

indicate output regulation. The delay between regulated

output level and flag indication is programmable with

a single capacitor. The LT3013 also has the ability to

operate with very small output capacitors. The regulator

is stable with only 3.3μF on the output while most older

devices require between 10μF and 100μF for stability.

Small ceramic capacitors can be used without any need

for series resistance (ESR) as is common with other

regulators. Internal protection circuitry includes reverse-

battery protection, current limiting, thermal limiting and

reverse current protection.

The device is available with an adjustable output with a

1.24V reference voltage. The LT3013 regulator is available

in the thermally enhanced 16-lead TSSOP and the low

profile (0.75mm), 12-pin (4mm × 3mm) DFN package,

both providing excellent thermal characteristics.

, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

FEATURES

APPLICATIONS

Capacitors

12-Pin (4mm × 3mm) DFN Package

5V Supply with Shutdown

1μF

5.4V TO

80V

3013 TA01

5V

250mA

<0.3V

>2.0V

OUTPUT

OFF

ON

3.3μF

750k

249k

1.6M

IN

LT3013

SHDN

PWRGD

OUT

ADJ

GND

1000pF

OUTPUT CURRENT (mA)

0

250

300

400

350

200

3013 TA02

200

150

50

100

150

250

100

50

0

Dropout Voltage