LT3011

1

3011f

OUTPUT CURRENT (mA)

0

250

300

350

40

3011 TA02

200

150

10

20

30

50

100

50

0

Capacitors

10-Pin (3mm

× 3mm) DFN Packages

TYPICAL APPLICATION

FEATURES

APPLICATIONS

DESCRIPTION

50mA, 3V to 80V Low

Dropout Micropower Linear

Regulator with PWRGD

linear regulator. The device is capable of supplying 50mA of

output current with a dropout voltage of 300mV. Designed

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

quiescent current (46μA operating and 1μA in shutdown)

is well controlled in dropout, making the LT3011 an ideal

choice.

The LT3011 includes a PWRGD flag to indicate output

regulation. The delay between regulated output level and

flag indication is programmable with a single capacitor.

The LT3011 also has the ability to operate with very small

output capacitors; it is stable with only 1μF on the output.

Small ceramic capacitors can be used without the addition

of any 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 LT3011 features an adjustable output with a 1.24V

reference voltage. The device is available in the thermally

enhanced 12-lead MSOP and the low profile (0.75mm)

10-pin (3mm

× 3mm) DFN package, both providing excel-

lent thermal characteristics.

5V Supply with Shutdown

Dropout Voltage

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

All other trademarks are the property of their respective owners.

1μF

3V TO

80V

3011 TA01

5V

50mA

<0.3V

>2.0V

OUTPUT

OFF

ON

1μF

750k

249k

1.6M

IN

LT3011

SHDN

PWRGD

OUT

ADJ

GND

1000pF

POWER GOOD