L4921 Selling Leads, Price trend, L4921 DataSheet download, circuit diagram from SeekIC.com

Features: .VERYLOWDROPVOLTAGE.ADJUSTABLEOUTPUTVOLTAGEFROM 1.25VTO20V.400mAOUTPUTCURRENT.LOWQUIESCENTCURRENT.REVERSEVOLTAGEPROTECTION.+60/? 60VTRANSIENTPEAKVOLTAGE PROTECTION.SHORTCIRCUITPROTECTIONWITHFOLD- BACKCHARACTERISTICS.THERMALSHUT-DOWNPinoutSpecifications Symbol Parameter Value ...

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SeekIC No. : 004389141 Detail

L4921: Features: .VERYLOWDROPVOLTAGE.ADJUSTABLEOUTPUTVOLTAGEFROM 1.25VTO20V.400mAOUTPUTCURRENT.LOWQUIESCENTCURRENT.REVERSEVOLTAGEPROTECTION.+60/? 60VTRANSIENTPEAKVOLTAGE PROTECTION.SHORTCIRCUITPROTECTIONWI...

L4921 Data Sheet

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Part Number:: L4921
Supply Ability:: 5000

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1~5000

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Upload time: 2024/11/23

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Product Details

Description

Features:

.VERYLOWDROPVOLTAGE
.ADJUSTABLEOUTPUTVOLTAGEFROM 1.25VTO20V
.400mAOUTPUTCURRENT
.LOWQUIESCENTCURRENT
.REVERSEVOLTAGEPROTECTION
.+60/? 60VTRANSIENTPEAKVOLTAGE PROTECTION
.SHORTCIRCUITPROTECTIONWITHFOLD- BACKCHARACTERISTICS
.THERMALSHUT-DOWN

Pinout

Connection Diagram

Specifications

Symbol	Parameter	Value	Unit
	DCInputOperatingVoltage DCReverseInputVoltage TransientInputOvervoltages: LoadDump: 5ms riseT 10ms, f FallTimeConstant=100ms, Rsource<0.5 FieldDecay: 5mstfall10ms,Rsource <10 rRiseTimeConstant=33ms	35	V
T_j,T_stg	JunctionandStorageTemperatureRange	-55to150

Description

TheL4920andL4921 are adjustable voltageregu- latorswithaverylowvoltagedrop(0.4Vtyp.at0.4A T_j=25),lowquiescentcurrentandcomprehen- siveon-chipprotection.
TheL4920andL4921 are protectedagainstloaddumpand fielddecaytransients,polarityreversalandover heating.

Afoldbackcurrentlimiterprotectsagainstloadshort circuits.

Theoutputvoltageisadjustablethroughanexternal dividerfrom1.25Vto20V.Theminimumoperating inputvoltageis5.2V(T_J=25).

Theseregulatorsaredesignedforautomotive,in- dustrialandconsumerapplicationswherelowcon- sumptionisparticularlyimportant.

Inbatterybackupandstandbyapplicationsthelow consumptionofthesedevicesextendsbatterylife.

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L4921

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