LR1117D Ver la hoja de datos (PDF) - Leshan Radio Company,Ltd

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LR1117D

1A Bipolar Linear Regulator

Leshan Radio Company,Ltd 

1A Bipolar Linear Regulator

LESHAN RADIO COMPANY, LTD.

LR1117'

DESCRIPTION

LR1117 is a series of low dropout three- terminal

regulators with a dropout of 1.3V at 1A load current.

LR1117 features a very low standby current 2mA

compared to 5mA of competitor.

Other than a fixed version, Vout = 1.2V, 1.8V, 2.5V,

2.85V, 3.3V, 5V, LR1117 has an adjustable version,

which can provide an output voltage from 1.2ϱsto

ϭϮV with only two external resistors.

LR1117 offers thermal shut down functions, to

assure the stability of chip and power system. And

it uses trimming technique to guarantee output

voltage accuracy within r2%. Other output voltage

accuracy can be customized on demand, such as

r1%

LR1117 is available in SOT-223, TO-252 power

package.

FEATURES

xOther than a fixed version and an adjustable

version, output value can be customized on

demand.

x Maximum output current : 1.4A

x Range of operation input voltage: Max 15V

x Standby current: 2mA (typ.)

x Line regulation: 0.03%/V (typ.)

x Load regulation: 0.2%/A (typ.)

x Environment Temperature: -40qC~85qC

APPLICATIONS

x Power Management for Computer Mother

Board, Graphic Card

x BLD Monitor and BLD TV

x DVD Decode Board

x ADSL Modem

x Post Regulators for Switching Supplies

TYPICAL APPLICATION

LR1117D

Vin

Vin Vout

10uF

Gnd

Vout

10uF

Application circuit of LR1117 fixed version

NOTE: Input capacitor (Cin=10uF) and Output

capacitor (Cout=10uF) are recommended in all

application circuit. Tantalum capacitor is

recommended.

TYPICAL ELECTRICAL CHARACTERISTIC

LR1117

Ver

1/

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