
BA178M!!T / BA178M!!FP series
Regulator ICs
BA178M12T / FP
Parameter Symbol Min. Typ. Max. Unit
15 − 27 V
−−0.5 A
V
IN
IO
Input voltage
Output current
BA178M18T / FP
Parameter Symbol Min. Typ. Max. Unit
21 − 33 V
−−0.5 A
V
IN
IO
Input voltage
Output current
BA178M24T / FP
BA178M15T / FP
Parameter Symbol Min. Typ. Max. Unit
17.5 − 30 V
−−0.5 A
V
IN
I
O
Input voltage
Output current
BA178M20T / FP
Parameter Symbol Min. Typ. Max. Unit
23 − 33 V
−−0.5 A
V
IN
IO
Input voltage
Output current
Parameter Symbol Min. Typ. Max. Unit
V
IN 27 − 33 V
I
O −−0.5 A
Input voltage
Output current
"
""
"Electrical characteristics
<BA178M05T / FP individual specifications> (unless otherwise noted, Ta=25°C, V
IN
=10V, I
O
=350mA)
Parameter Symbol Min. Typ. Max. Unit Conditions
Measurement
circuit
Output voltage 1 VO1 4.8 5.0 5.2 V IO
=
350mA Fig.1
Output voltage 2 V
O2 4.75 − 5.25 V Fig.1
Input stability 1 Reg.I
1 − 3 100 mV Fig.1
Input stability 2 Reg.I
2 − 1 50 mV Fig.1
Ripple rejection ratio R.R. 62 78 − dB Fig.2
Load regulation 1 Reg.L
1 − 20 100 mV IO
=
5
~
500mA Fig.1
Load regulation 2 Reg.L
2 − 10 50 mV IO
=
5
~
200mA Fig.1
Temperature coefficient of output voltage T
CVO −−1.0 − Fig.1
Output noise voltage V
n − 40 −µVf
=
10Hz
~
100kHz Fig.3
Minimum I/O voltage differential V
d − 2.0 − VIO
=
500mA Fig.4
Bias current I
b − 4.5 6.0 mA IO
=
0mA Fig.5
Bias current change 1 I
b1 −−0.5 mA IO
=
5
~
350mA Fig.5
Bias current change 2 I
b2 −−0.8 mA Fig.5
Peak output current I
O−P − 875 − mA Tj
=
25
°C
Fig.1
Output short-circuit current I
OS − 0.4 − AVIN
=
25V Fig.6
V
IN
=
7.5
~
20V, IO
=
5
~
350mA
V
IN
=
7
~
25V, IO
=
200mA
V
IN
=
8
~
12V, IO
=
200mA
e
IN
=
1Vrms, f
=
120Hz, IO
=
100mA
I
O
=
5mA, Tj
=
0
~
125
°C
VIN
=
8
~
25V, IO
=
200mA
mV/
°C
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