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Fairchild Semiconductor Electronic Components Datasheet

78M05 Datasheet

3-Terminal 0.5A Positive Voltage Regulator

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January 2015
KA78M05 / LM78M05 / MC78M05
3-Terminal 0.5 A Positive Voltage Regulator
Features
Description
• Output Current up to 0.5 A
• Output Voltages of 5 V
• Thermal Overload Protection
• Short-Circuit Protection
• Output Transistor Safe Operating Area (SOA) Protection
The KA78M05 / LM78M05 / MC78M05 series of three-
terminal positive regulators is available in the TO-220 / D-
PAK packages, making it useful in a wide range of appli-
cations.
TO-220
GND
1
D-PAK GND
1
1. Input 2. GND 3. Output
Ordering Information(1)
Product Number
KA78M05TU
KA78M05RTM
MC78M05CDTX
LM78M05CT
Package
TO-220 (Dual Gauge)
D-PAK
TO-220 (Single Gauge)
Packing Method
Rail
Tape and Reel
Rail
Note:
1. Refer to below figure for TM / TF suffix of DPAK packing option.
Operating Temperature
-40 to +125°C
© 2001 Fairchild Semiconductor Corporation
KA78M05 / LM78M05 / MC78M05 Rev. 2.5
www.fairchildsemi.com


Fairchild Semiconductor Electronic Components Datasheet

78M05 Datasheet

3-Terminal 0.5A Positive Voltage Regulator

No Preview Available !

Block Diagram
INPUT
1
CURRENT
GENERATOR
SERIES
PASS
ELEMENT
SOA
PROTECTION
OUTPUT
3
R1
STARTING
CIRCUIT
REFERENCE
VOLTAGE
ERROR
AMPLIFIER
THERMAL
PROTECTION
Figure 1. Block Diagram
R2
GND
2
Absolute Maximum Ratings
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be opera-
ble above the recommended operating conditions and stressing the parts to these levels is not recommended. In addi-
tion, extended exposure to stresses above the recommended operating conditions may affect device reliability. The
absolute maximum ratings are stress ratings only.
Symbol
VI
RθJC
RθJA
Parameter
Input Voltage (for VO = 5 V)
Thermal Resistance, Junction-Case(2)
Thermal Resistance, Junction-Air(2), (3)
TOPR
TJ(MAX)
TSTG
Operating Junction Temperature Range
Maximum Junction Temperature Range
Storage Temperature Range
Notes:
2. Thermal resistance test board.
Size: 76.2 mm x 114.3 mm x 1.6 mm (1S0P)
JEDEC standard: JESD51-3, JESD51-7
3. Assume no ambient airflow.
TO-220 (TC = +25°C)
TO-220 (TA = +25°C)
D-PAK (TA = +25°C)
Value
35
2.5
66
92
-40 to +125
150
-65 to +150
Unit
V
°C/W
°C/W
°C
°C
°C
© 2001 Fairchild Semiconductor Corporation
KA78M05 / LM78M05 / MC78M05 Rev. 2.5
2
www.fairchildsemi.com


Part Number 78M05
Description 3-Terminal 0.5A Positive Voltage Regulator
Maker Fairchild Semiconductor
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78M05 Datasheet PDF






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