LT3022



3022f

Typical applicaTion

FeaTures

DescripTion

1A, 0.9V to 10V,

Very Low Dropout

Linear Regulator

linear regulator that operates from single input supplies

down to 0.9V. The device supplies 1A output current

with 145mV typical dropout voltage. The LT3022 is ideal

for low input voltage to low output voltage applications,

providing comparable electrical efficiency to a switching

regulator. The regulator optimizes stability and transient

response with low ESR ceramic output capacitors as small

as 10µF. Other LT3022 features include 0.05% typical line

regulationand0.05%typicalloadregulation.Inshutdown,

quiescentcurrenttypicallydropsto7.5µA.Internalprotec-

tion circuitry includes reverse-battery protection, current

limiting, thermal limiting with hysteresis and reverse-cur-

rent protection.

The LT3022 is available as an adjustable device with an

output voltage range down to the 200mV reference. The

LT3022 regulator is available in the thermally enhanced

low profile (0.75mm) 16-lead (5mm

× 3mm) DFN and

MSOP packages.

1.2V to 0.9V, 1A VLDO Regulator

applicaTions

n

n

Dropout Voltage: 145mV Typical

n

Output Current: 1A

n

n

Stable with Low ESR, Ceramic Output Capacitors

(10µF Minimum)

n

0.05% Typical Load Regulation from 1mA to 1A

n

Quiescent Current: 400µA Typical

n

7.5µA Typical Quiescent Current in Shutdown

n

Current Limit Protection

n

Reverse-Battery Protection with No Reverse Current

n

Thermal Limiting with Hysteresis

n

16-Lead (5mm

× 3mm) DFN and MSOP Packages

n

High Efficiency Linear Regulators

n

Battery-Powered Systems

n

Logic Supplies

n

Post Regulator for Switching Supplies

n

Wireless Modems

n

FPGA Core Supplies

L

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

Technology Corporation. VLDO is a trademark of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

IN

10µF

1.2V

0.9V

1A

LT3022

SHDN

698

1%

200

1%

OUT

ADJ

GND

10µF

3022 TA01a

Minimum Input Voltage

TEMPERATURE (°C)

–50

0.3

0.9

1.0

1.1

0

50

75

3022 TA01b

0.1

0.7

0.5

0.2

0.8

0

0.6

0.4

–25

25

100 125