LT3012

1

3012fd

FEATURES

APPLICATIONS

DESCRIPTION

250mA, 4V to 80V

Low Dropout

Micropower Linear Regulator

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 (40μA operating and 1μA in shutdown)

makes the LT3012 an ideal choice. Quiescent current is

also well controlled in dropout.

Other features of the LT3012 include 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 ce-

ramic 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 LT3012 regulator is available

in the 16-lead TSSOP and 12 pin low profile (0.75mm)

(4mm × 3mm) DFN packages with an exposed pad for

enhanced thermal handling capability.

Dropout Voltage

Capacitors

12-Pin (4mm × 3mm) DFN Packages

5V Supply with Shutdown

TYPICAL APPLICATION

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

All other trademarks are the property of their respective owners.

1μF

5.4V TO

80V

3012 TA01

5V

250mA

<0.3V

>2.0V

OUTPUT

OFF

ON

3.3μF

750k

249k

IN

LT3012

SHDN

OUT

ADJ

GND

OUTPUT CURRENT (mA)

0

250

300

400

350

200

3012 TA02

200

150

50

100

150

250

100

50

0