300mA CMOS L.D.O. Regulator

LM1108

FEATURES

●

Extremely Low Supply Current(50µA,Typ.)

●

Very Low Dropout Voltage

●

300mA Output Current

●

Compatible with MLCC

●

High Output Voltage Accuracy +/- 1.4 %

●

Standardor Custom Output Voltages

●

Over Currentand Over Temperature Protection

●

Small input/output differential : 0.3V for full load

●

Moisture Sensitivity Level 3

APPLICATIONS

●

Battery Operated Systems

●

Portable Computers

●

Portable Cameras and Video Recorders

●

Medical Instruments

●

Instrumentation

ORDERING INFORMATION

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Cellular/GSM/PHS Phones

●

Linear Post-Regulators for SMPS

●

Pagers

( "X.X" = Output Voltage

= 1.5, 1.8, 2.5, 3.0, 3.3, 3.6, 5.0 )

DESCRIPTION

TYPICAL APPLICATION CIRCUIT

Nov. 2010 - Rev. 1.3.1

HTC

-1 -

Package

SOT-89

SOT-23 5L

Marking

1108 X.X

HXX

BXX

HXX

HGXX

SOT-23 3L

Device

LM1108F-X.X

LM1108SF5-X.X

The LM1108 is a fixed output,high accuracy(typically ±0.5%) CMOS low drop-out regulator.

Total supply current is typically 50µA at full load (20 to 60 times lower than in bipolar regulators).

LM1108 key features include ultra low noise operation, very low dropout voltage (typically 240mV at full load),

and fast response to step changes in load.

The LM1108 in corporates both over temperature and over current protection.

The LM1108 is stable with an output capacitor of only1µF and has a maximum out put current of 300mA.

It is available in a SOT-23 & SOT-89 package

SOT-23-5L (SOT-25)

SOT-89

1. GND 2. Vin 3. Vout 4. NC 5. NC

1. GND 2. Vin 3. Vout [A type]

1. Vin 2. Vout 3. GND [B type]

1. GND 2. Vin 3. Vout

1

3

2

1

2

3

4

5

1

2

3