BA178!!T / FP series
Regulator ICs
Standard 78 series, 3-pin regulator
BA178!! / FP series
!!T
!!
The BA178!!T and BA178!!FP series are 3pin fixed positive output voltage regulators. These regulators are used to
provide a stabilized output voltage from a fluctuating DC input voltage.
There are 11 fixed output voltages, as follows : 5V, 6V, 7V, 8V, 9V, 10V, 12V, 15V, 18V, 20V, and 24V. The maximum
current capacity is 1A for each of the above voltages.
"
Application
Constant voltage power supply
"
Features
1) Built-in overcurrent protection circuit and thermal shutdown circuit.
2) Excellent ripple regulation.
3) Available in TO220FP and TO252-3 packages, to meet wide range of applications.
4) Compatible with other manufacturers' regulators.
5) Richly diverse lineup (5V, 6V, 7V, 8V, 9V, 10V, 12V, 15V, 18V, 20V, 24V).
"
Product codes
Output voltage (V)
5
6
7
8
9
10
Product name
BA17805T / FP
BA17806T / FP
BA17807T / FP
BA17808T / FP
BA17809T / FP
BA17810T / FP
Output voltage (V)
12
15
18
20
24
−
Product name
BA17812T / FP
BA17815T / FP
BA17818T / FP
BA17820T / FP
BA17824T / FP
−
BA178!!T / FP series
Regulator ICs
"
Internal circuit configuration diagram
(1)
INPUT
R
4
Q
12
R
10
R
8
Q
8
Q
9
D
2
Q
16
Q
15
R
5
Q
13
Q
10
Q
6
R
6
Q
5
R
15
R
2
Q
7
Q
2
Q
14
R
7
R
22
Q
1
R
14
R
18
R
3
D
3
Q
4
Q
3
R
19
R
16
Q
11
Q
18
R
20
R
12
Q
17
R
9
R
13
R
21
R
17
R
11
(3)
OUTPUT
R
1
D
1
C
1
(2)
COMMON
"
Absolute maximum ratings
(Ta=25°C)
^Common
specifications for BA178!!T / FP seriesp
Parameter
Applied voltage
Power
dissipation
TO220FP
TO252-3
Symbol
V
IN
Pd
Topr
Tstg
Limits
35
2.0
∗
1.0
∗
−40∼+85
−55∼+150
Unit
V
W
˚C
˚C
Operating temperature
Storage temperature
(without heat sink).
∗
Reduced by 16 mW / ˚C (TO220FP) and 8 mW / ˚C (TO252-3) for each increase in Ta of 1˚C over 25˚C
"
Recommended operating conditions
(Ta=25°C)
BA17805T / FP
Parameter
Input voltage
Output current
BA17806T / FP
Symbol
V
IN
I
O
Min.
7.5
−
Typ.
−
−
Max.
25
1
Unit
V
A
Parameter
Input voltage
Output current
Symbol
V
IN
I
O
Min.
8.5
−
Typ.
−
−
Max.
21
1
Unit
V
A
BA17807T / FP
Parameter
Input voltage
Output current
BA17808T / FP
Symbol
V
IN
I
O
Min.
9.5
−
Typ.
−
−
Max.
22
1
Unit
V
A
Parameter
Input voltage
Output current
Symbol
V
IN
I
O
Min.
10.5
−
Typ.
−
−
Max.
23
1
Unit
V
A
BA178!!T / FP series
Regulator ICs
BA17809T / FP
Parameter
Input voltage
Output current
BA17810T / FP
Symbol
V
IN
I
O
Min.
11.5
−
Typ.
−
−
Max.
26
1
Unit
V
A
Parameter
Input voltage
Output current
Symbol
V
IN
I
O
Min.
12.5
−
Typ.
−
−
Max.
25
1
Unit
V
A
BA17812T / FP
Parameter
Input voltage
Output current
BA17815T / FP
Symbol
V
IN
I
O
Min.
15
−
Typ.
−
−
Max.
27
1
Unit
V
A
Parameter
Input voltage
Output current
Symbol
V
IN
I
O
Min.
17.5
−
Typ.
−
−
Max.
30
1
Unit
V
A
BA17818T / FP
Parameter
Input voltage
Output current
BA17820T / FP
Symbol
V
IN
I
O
Min.
21
−
Typ.
−
−
Max.
33
1
Unit
V
A
Parameter
Input voltage
Output current
Symbol
V
IN
I
O
Min.
23
−
Typ.
−
−
Max.
33
1
Unit
V
A
BA17824T / FP
Parameter
Input voltage
Output current
Symbol
V
IN
I
O
Min.
27
−
Typ.
−
−
Max.
33
1
Unit
V
A
"
Electrical characteristics
<BA17805T / FP individual specifications> (unless otherwise noted, Ta=25°C, V
IN
=10V, I
O
=500mA)
Parameter
Output voltage 1
Output voltage 2
Input stability 1
Input stability 2
Ripple rejection ratio
Load regulation 1
Load regulation 2
Temperature coefficient of output voltage
Output noise voltage
Minimum I/O voltage differential
Bias current
Bias current change 1
Bias current change 2
Peak output current
Output short-circuit current
Symbol
V
O1
V
O2
Reg.I
1
Reg.I
2
R.R.
Reg.L
1
Reg.L
2
T
CVO
V
n
V
d
I
b
I
b1
I
b2
I
O-P
I
OS
Min.
4.8
4.75
−
−
62
−
−
−
−
−
−
−
−
−
−
Typ.
5.0
−
3
1
78
15
5
−1.0
40
2.0
4.5
−
−
1.7
0.6
Max.
5.2
5.25
100
50
−
100
50
−
−
−
8.0
0.5
0.8
−
−
Unit
V
V
mV
mV
dB
mV
mV
µV
V
mA
mA
mA
A
A
I
O
=500mA
Conditions
Measurement
circuit
Fig.1
Fig.1
Fig.1
Fig.1
Fig.2
Fig.1
Fig.1
Fig.1
Fig.3
Fig.4
Fig.5
Fig.5
Fig.5
Fig.1
Fig.6
V
IN
=7.5∼20V, I
O
=5mA∼1A
V
IN
=7∼25V, I
O
=500mA
V
IN
=8∼12V, I
O
=500mA
e
IN
=1Vrms, f=120Hz, I
O
=100mA
I
O
=5mA∼1A
I
O
=250∼750mA
mV/˚C I
O
=5mA, T
j
=0∼125˚C
f=10Hz∼100kHz
I
O
=1A
I
O
=0mA
I
O
=5mA∼1A
V
IN
=8∼25V
T
j
=25˚C
V
IN
=25V
BA178!!T / FP series
Regulator ICs
<BA17806T / FP individual specifications> (unless otherwise noted, Ta=25°C, V
IN
=11V, I
O
=500mA)
Parameter
Output voltage 1
Output voltage 2
Input stability 1
Input stability 2
Ripple rejection ratio
Load regulation 1
Load regulation 2
Temperature coefficient of output voltage
Output noise voltage
Minimum I/O voltage differential
Bias current
Bias current change 1
Bias current change 2
Peak output current
Output short-circuit current
Symbol
V
O1
V
O2
Reg.I
1
Reg.I
2
R.R.
Reg.L
1
Reg.L
2
T
CVO
V
n
V
d
I
b
I
b1
I
b2
I
O-P
I
OS
Min.
5.75
5.7
−
−
59
−
−
−
−
−
−
−
−
−
−
Typ.
6.0
−
4
2
73
16
6
−0.5
60
2.0
4.5
−
−
1.7
0.6
Max.
6.25
6.3
120
60
−
120
60
−
−
−
8.0
0.5
0.8
−
−
Unit
V
V
mV
mV
dB
mV
mV
µV
V
mA
mA
mA
A
A
I
O
=500mA
Conditions
Measurement
circuit
Fig.1
Fig.1
Fig.1
Fig.1
Fig.2
Fig.1
Fig.1
Fig.1
Fig.3
Fig.4
Fig.5
Fig.5
Fig.5
Fig.1
Fig.6
V
IN
=8.5∼21V,
I
O
=5mA∼1A
V
IN
=8∼25V,
I
O
=500mA
V
IN
=9∼13V,
I
O
=500mA
e
IN
=1Vrms,
f=120Hz, I
O
=100mA
I
O
=5mA∼1A
I
O
=250∼750mA
mV/˚C I
O
=5mA,
T
j
=0∼125˚C
f=10Hz∼100kHz
I
O
=1A
I
O
=0mA
I
O
=5mA∼1A
V
IN
=8.5∼25V
T
j
=25˚C
V
IN
=25V
<BA17807T / FP individual specifications> (unless otherwise noted, Ta=25°C, V
IN
=13V, I
O
=500mA)
Parameter
Output voltage 1
Output voltage 2
Input stability 1
Input stability 2
Ripple rejection ratio
Load regulation 1
Load regulation 2
Temperature coefficient of output voltage
Output noise voltage
Minimum I/O voltage differential
Bias current
Bias current change 1
Bias current change 2
Peak output current
Output short-circuit current
Symbol
V
O1
V
O2
Reg.I
1
Reg.I
2
R.R.
Reg.L
1
Reg.L
2
T
CVO
V
n
V
d
I
b
I
b1
I
b2
I
O-P
I
OS
Min.
6.7
6.65
−
−
57
−
−
−
−
−
−
−
−
−
−
Typ.
7.0
−
5
2
69
17
6
−0.5
70
2.0
4.5
−
−
1.7
0.6
Max.
7.3
7.35
140
70
−
140
70
−
−
−
8.5
0.5
0.8
−
−
Unit
V
V
mV
mV
dB
mV
mV
µV
V
mA
mA
mA
A
A
I
O
=500mA
Conditions
Measurement
circuit
Fig.1
Fig.1
Fig.1
Fig.1
Fig.2
Fig.1
Fig.1
Fig.1
Fig.3
Fig.4
Fig.5
Fig.5
Fig.5
Fig.1
Fig.6
V
IN
=9.5∼22V,
I
O
=5mA∼1A
V
IN
=9∼25V,
I
O
=500mA
V
IN
=10∼15V,
I
O
=500mA
e
IN
=1Vrms,
f=120Hz, I
O
=100mA
I
O
=5mA∼1A
I
O
=250∼750mA
mV/˚C I
O
=5mA,
T
j
=0∼125˚C
f=10Hz∼100kHz
I
O
=1A
I
O
=0mA
I
O
=5mA∼1A
V
IN
=9.5∼25V
T
j
=25˚C
V
IN
=25V
BA178!!T / FP series
Regulator ICs
<BA17808T / FP individual specifications> (unless otherwise noted, Ta=25°C, V
IN
=14V, I
O
=500mA)
Parameter
Output voltage 1
Output voltage 2
Input stability 1
Input stability 2
Ripple rejection ratio
Load regulation 1
Load regulation 2
Temperature coefficient of output voltage
Output noise voltage
Minimum I/O voltage differential
Bias current
Bias current change 1
Bias current change 2
Peak output current
Output short-circuit current
Symbol Min.
V
O1
V
O2
Reg.I
1
Reg.I
2
R.R.
Reg.L
1
Reg.L
2
T
CVO
V
n
V
d
I
b
I
b1
I
b2
I
O-P
I
OS
7.7
7.6
−
−
56
−
−
−
−
−
−
−
−
−
−
Typ.
8.0
−
5
3
65
19
7
−0.5
80
2.0
4.5
−
−
1.7
0.6
Max.
8.3
8.4
160
80
−
160
80
−
−
−
8.0
0.5
0.8
−
−
Unit
V
V
mV
mV
dB
mV
mV
µV
V
mA
mA
mA
A
A
I
O
=500mA
Conditions
Measurement
circuit
Fig.1
Fig.1
Fig.1
Fig.1
Fig.2
Fig.1
Fig.1
Fig.1
Fig.3
Fig.4
Fig.5
Fig.5
Fig.5
Fig.1
Fig.6
V
IN
=10.5∼23V,
I
O
=5mA∼1A
V
IN
=10.5∼25V,
I
O
=500mA
V
IN
=11∼17V,
I
O
=500mA
e
IN
=1Vrms,
f=120Hz, I
O
=100mA
I
O
=5mA∼1A
I
O
=250∼750mA
mV/˚C I
O
=5mA,
T
j
=0∼125˚C
f=10Hz∼100kHz
I
O
=1A
I
O
=0mA
I
O
=5mA∼1A
V
IN
=10.5∼25V
T
j
=25˚C
V
IN
=25V
<BA17809T / FP individual specifications> (unless otherwise noted, Ta=25°C, V
IN
=15V, I
O
=500mA)
Parameter
Output voltage 1
Output voltage 2
Input stability 1
Input stability 2
Ripple rejection ratio
Load regulation 1
Load regulation 2
Temperature coefficient of output voltage
Output noise voltage
Minimum I/O voltage diffrential
Bias current
Bias current change 1
Bias current change 2
Peak output current
Output short-circuit current
Symbol
V
O1
V
O2
Reg.I
1
Reg.I
2
R.R.
Reg.L
1
Reg.L
2
T
CVO
V
n
V
d
I
b
I
b1
I
b2
I
O-P
I
OS
Min.
8.6
8.55
−
−
56
−
−
−
−
−
−
−
−
−
−
Typ.
9.0
−
6
4
64
20
8
−0.5
90
2.0
4.5
−
−
1.7
0.3
Max.
9.4
9.45
180
90
−
180
90
−
−
−
8.0
0.5
0.8
−
−
Unit
V
V
mV
mV
dB
mV
mV
µV
V
mA
mA
mA
A
A
I
O
=500mA
Conditions
Measurement
circuit
Fig.1
Fig.1
Fig.1
Fig.1
Fig.2
Fig.1
Fig.1
Fig.1
Fig.3
Fig.4
Fig.5
Fig.5
Fig.5
Fig.1
Fig.6
V
IN
=11.5∼26V, I
O
=5mA∼1A
V
IN
=11.5∼26V, I
O
=500mA
V
IN
=13∼19V, I
O
=500mA
e
IN
=1Vrms, f=120Hz, I
O
=100mA
I
O
=5mA∼1A
I
O
=250∼750mA
mV/˚C I
O
=5mA, T
j
=0∼125˚C
f=10Hz∼100kHz
I
O
=1A
I
O
=0mA
I
O
=5mA∼1A
V
IN
=11.5∼26V
T
j
=25˚C
V
IN
=30V
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