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Last update: 8 August 2010

IC numbers:78xx, 78Lxx, TL780-xx, LM340, LM323
IC function:Positive voltage regulator
Related components:79xx, 79Lxx (negative voltage regulators)

Component documentation
IC numberManufacturerDocumentation
µA78L05ATexas InstrumentsWeb page, Datasheet (PDF)
MC7805Motorola (now ON Semiconductor)Datasheet (PDF)
MC7812Motorola (now ON Semiconductor)Datasheet (PDF)
LM7805National SemiconductorWeb page, Datasheet (PDF)
LM7812National SemiconductorWeb page, Datasheet (PDF)
µA7805Fairchild SemiconductorNot available
HA17805HitachiNot available
L7812SGS Microelectronics (now STMicroelectronics)Datasheet (PDF)
AN7812PanasonicNot available
µA7812Texas InstrumentsWeb page, Datasheet (PDF)
TL780-05Texas InstrumentsWeb page, Datasheet (PDF)
LM340National SemiconductorWeb page, Datasheet (PDF)
LM323National SemiconductorWeb page, Datasheet (PDF)
Motorola (now ON Semiconductor)Web page, Datasheet (PDF)

Component versions
IC numberPackageVoltageCurrentCBM part numberCBM part descriptionReplacement parts
78L058-pin SO5V100mA391262-01Voltage Regulator, 78L05, SM78L05 available from:Conrad
7805TO-2205V1A901527-02Voltage regulator MC7805CT 7805 available from:Conrad
MC7805CT available from:Conrad
L7805CV available from:Conrad
LM340-5TO-35V1A901528-03Voltage regulator, LM340-5, +5V/1.5A
TL780-05TO-2205V1.5A390764-01TL780-05CKC 5 Volt regulator 2%
LM323TO-35V3A901528-01Volt regulator LM323
7812, LM340-12TO-22012V1A901527-01Voltage regulator MC7812CT 7812 available from:Conrad
MC7812CT available from:Conrad
L7812CV available from:Conrad
7812TO-312V1A901528-04Voltage regulator, 7812, +12V/1A

Positions
DevicePositionComponentsPackage
A3000TU198TL780-05TO-220
CD³²U3278L058-pin SO
A2300IC177805TO-220
A2301IC177805TO-220
CD1301IC77805TO-220
CD³² MPEG boardU2117805TO-220
U31178L058-pin SO
C64VR17812, LM340-12TO-220
VR27805TO-220
C64C B-3 boardVR17812TO-220
VR27805TO-220
C128U597812TO-220
C16VR17805TO-220
C116VR17805TO-220
VIC-20VR1LM323TO-3
PET assy 8032090VR27812TO-3
VR4LM323TO-3
PET assy 8032080VR27812TO-3
VR3, VR4LM340-5TO-3
PET assy 8032030VR27812TO-3
VR3, VR4LM340-5, LM323TO-3
PET assy 320351VR57812TO-3
VR3, VR4LM340-5, LM323TO-3
SuperPET BMB boardVR1, VR2, VR37805TO-220
SuperPET compu/think boardU197812TO-220
U247805TO-220
SuperPET combo boardVR1, VR27805TO-220
64k PET memory expansion boardVR1LM340-5TO-3
VR27812TO-220
2040 digital boardVR1, VR27812TO-3
VR3LM323TO-3
8050, 8250 digital boardVR1, VR27812TO-3
VR3LM323TO-3
2031 HPVR1LM323TO-3
VR2LM340-12TO-3
2031 LPVR1LM340-12TO-3
VR2LM323TO-3
1540, 1541VR1LM340-12TO-3
VR2LM340-5, LM323TO-3

Pinout TO-220
PinFunction
1Input
2Ground
3Output
caseGround

Pinout TO-3
PinFunction
1Input
2Output
caseGround

Pinout SO
PinFunction
1Output
2..3Ground
4..5Not connected
6..7Ground
8Input

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