LT3014

1

3014fd

TYPICAL APPLICATION

FEATURES

APPLICATIONS

DESCRIPTION

20mA, 3V to 80V

Low Dropout Micropower

Linear Regulator

linear regulator. The device is capable of supplying 20mA of

output current with a dropout voltage of 350mV. Designed

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

quiescent current (7μA operating and 1μA in shutdown)

makes the LT3014 an ideal choice. Quiescent current is

also well controlled in dropout.

Other features of the LT3014 include the ability to operate

with very small output capacitors. The regulators are stable

with only 0.47μF on the output while most older devices

require between 10μF and 100μF for stability. Small ceramic

capacitors can be used without the necessary addition of

ESR as is common with other regulators. Internal protec-

tion circuitry includes reverse-battery protection, current

limiting, thermal limiting and reverse current protection.

The device is available as an adjustable device with a 1.22V

reference voltage. The LT3014 regulator is available in the

5-lead ThinSOT and 8-lead DFN packages.

Dropout Voltage

Capacitors

■

8-Lead DFN Packages

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

ThinSOT is a trademark of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

Protected by U.S. Patents including 6118263, 6144250.

5V Supply with Shutdown

IN

LT3014

SHDN

1μF

5.4V TO

80V

OUT

ADJ

GND

3014 TA01

5V

20mA

0.47μF

3.92M

1.27M

<0.3V

>2.0V

OUTPUT

OFF

ON

400

350

300

250

200

150

100

50

0

3014 TA02

OUTPUT CURRENT (mA)

0

4

10 12

26

8

14 16 18 20