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LT3020/LT3020-1.2/

LT3020-1.5/LT3020-1.8

100mA, Low Voltage,

Very Low Dropout

Linear Regulator

FEATURES

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DESCRIPTIO

V

IN

Range: 0.9V to 10V

Minimum Input Voltage: 0.9V

Dropout Voltage: 150mV Typical

Output Current: 100mA

Adjustable Output (V

REF

= V

OUT(MIN)

= 200mV)

Fixed Output Voltages: 1.2V, 1.5V, 1.8V

Stable with Low ESR, Ceramic Output Capacitors

(2.2碌F Minimum)

0.2% Load Regulation from 0mA to 100mA

Quiescent Current: 120碌A (Typ)

3碌A Typical Quiescent Current in Shutdown

Current Limit Protection

Reverse-Battery Protection

No Reverse Current

Thermal Limiting with Hysteresis

8-Lead DFN (3mm

脳

3mm) and MSOP Packages

The LT

庐

3020 is a very low dropout voltage (VLDO

TM

) linear

regulator that operates from input supplies down to 0.9V.

This device supplies 100mA of output current with a

typical dropout voltage of 150mV. The LT3020 is ideal for

low input voltage to low output voltage applications,

providing comparable electrical efficiency to that of a

switching regulator.

The LT3020 regulator optimizes stability and transient

response with low ESR, ceramic output capacitors as

small as 2.2碌F. Other LT3020 features include 0% line

regulation and 0.2% typical load regulation. In shutdown,

quiescent current typically drops to 3碌A.

Internal protection circuitry includes reverse-battery pro-

tection, current limiting, thermal limiting with hysteresis,

and reverse-current protection. The LT3020 is available as

an adjustable output device with an output range down to

the 200mV reference. Three fixed output voltages, 1.2V,

1.5V and 1.8V, are also available.

The LT3020 regulator is available in the low profile

(0.75mm) 8-lead (3mm

脳

3mm) DFN package with ex-

posed pad and the 8-lead MSOP package.

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

VLDO is a trademark of Linear Technology Corporation.

APPLICATIO S

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Low Current Regulators

Battery-Powered Systems

Cellular Phones

Pagers

Wireless Modems

TYPICAL APPLICATIO

V

IN

1.8V

2.2碌F

IN

OUT

LT3020-1.5

SHDN

GND

Minimum Input Voltage

1.1

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0

鈥?0

鈥?5

0

25

50

75

TEMPERATURE (掳C)

100

125

I

L

= 100mA

1.8V to 1.5V, 100mA VLDO Regulator

V

OUT

1.5V

100mA

MINIMUM INPUT VOLTAGE (V)

2.2碌F

3020 TA01

U

3020 TA02

U

sn3020 3020fas

1

LTBKJ

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