78 Series Regulators
1A Output 78 series Regulators
500mA Output 78 series Regulators
No.12019ECT01
BA78Series,BA78MSeries
Description
BA78, BA78M series are three-terminal regulators available with several fixed output voltages. It supplies the
stable fixes voltage from unstable direct input voltage. The useful output voltage lineup is 5V, 6V, 7V, 8V, 9V, 10V, 12V, 15V,
18V, 20V, 24V with 0.5A / 1A current ability. They have nearly same electric characteristics as competitor products and cover
a wide range of application.
Features
1) Built-in over-current protection circuit and thermal shutdown circuit
2) High ripple rejection
3) Available TO220CP-3, TO252-3 package to a wide range application
4) Compatible replacement to competitor products
5) Various voltage lineup (5V, 6V, 7V, 8V, 9V, 10V, 12V, 15V, 18V, 20V, 24V)
Applications
Fixed voltage power supply for TV, Audio components, etc
Line up
1A BA78Series
Part Number 5V 6V 7V 8V 9V 10V 12V 15V 18V 20V 24V Package
BA78CP TO220CP-3
BA78FP TO252-3
0.5A BA78MSeries
Part Number 5V 6V 7V 8V 9V 10V 12V 15V 18V 20V 24V Package
BA78MCP TO220CP-3
BA78MFP TO252-3
Output Voltage and Marking
Part NumberBA78 (1A) Part NumberBA78M (0.5A)
a b
a b
Symbol assignment of output voltage Symbol assignment of output voltage
Output voltage(V) Output voltage(V) Output voltage(V) Output voltage(V)
05 5.0V typ. 12 12V typ. 05 5.0V typ. 12 12V typ.
06 6.0V typ. 15 15V typ. 06 6.0V typ. 15 15V typ.
a 07 7.0V typ. 18 18V typ. a 07 7.0V typ. 18 18V typ.
08 8.0V typ. 20 20V typ. 08 8.0V typ. 20 20V typ.
09 9.0V typ. 24 24V typ. 09 9.0V typ. 24 24V typ.
10 10.0V typ. 10 10.0V typ.
Package Package
CPTO220CP-3 CPTO220CP-3
b b
FPTO252-3 FPTO252-3
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2012.03 - Rev.C
1/12
2012 ROHM Co., Ltd. All rights reserved. Technical Note
BA78Series,BA78MSeries
Absolute Maximum Rating (Ta=25)
BA78CP/FP, BA78MCP/FP
Parameter Symbol Limits Unit
Power supply voltage Vin 35 V
*1
TO220CP-3 2
Power Dissipation 1 Pd1 W
*1
TO252-3 1
*2
TO220CP-3 22
Power Dissipation 2 Pd2 W
*2
TO252-3 10
*3
BA78 1
Output Current Io A
*3
BA78M 0.5
Operating Temperature Range Topr -40+85
Storage Temperature Range Tstg -55+150
Operating Junction Temperature Range Tj -40+150
*1 Derating in done 16mW/(TO220CP-3), 8mW/(TO252-3) for temperatures above Ta=25
*2 Derating in done 176mW/(TO220CP-3), 80mW/(TO252-3) for temperatures above Ta=25, Mounted on infinity Alminium heat sink.
*3 Pd,ASO and Tjmax(150) should not be exceeded.
Operating Conditions(Ta=25, Pd should not be exceeded)
BA78CP/FP BA78MCP/FP
Parameter Symbol Min. Max.Unit. Parameter Symbol Min. Max.Unit.
BA7805 7.5 25 BA78M05 7.5 25
BA7806 8.5 21 BA78M06 8.5 21
BA7807 9.5 22 BA78M07 9.5 22
BA7808 10.5 23 BA78M08 10.5 23
BA7809 11.5 26 BA78M09 11.5 26
Input Input
BA7810 12.5Vin 25 V BA78M10 Vin 12.5 25 V
Voltage Voltage
BA7812 14.5 27 BA78M12 14.5 27
BA7815 17.5 30 BA78M15 17.5 30
BA7818 21 33 BA78M18 21 33
BA7820 23 33 BA78M20 23 33
BA7824 27 33 BA78M24 27 33
Output Current Io - 1 A Output Current Io - 0.5 A
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2012.03 - Rev.C
2/12
2012 ROHM Co., Ltd. All rights reserved.