2001. 5. 31
1/5
SEMICONDUCTOR
TECHNICAL DATA
KIA78R25F~KIA78R37F
BIPOLAR LINEAR INTEGRATED CIRCUIT
Revision No : 1
5 TERMINAL LOW DROP VOLTAGE REGULATOR
The KIA78R
series are Low Drop Voltage
Regulator suitable for various electronic equipments.
It provides constant voltage power source with DPAK-5
terminal surface mount type PKG.
The Regulator has multi function such as over current
protection, overheat protection and ON/OFF control.
FEATURES
1.0A Output Low Drop Voltage Regulator.
Built in ON/OFF Control Terminal.
Built in Over Current Protection, Over Heat
Protection Function.
LINE UP
DPAK-5
DIM
MILLIMETERS
A
B
C
D
E
I
6.6 0.2
6.1 0.2
5.0 0.2
1.10 0.2
2.70 0.2
1.27 0.1
0.5+0.2/-0.1
2.30 0.2
0.5 0.1
0.50 0.1
0.8 0.2
0.7MIN
0 ~0.25
C
A
B
E
D
F
H
I
J
L
P
O
M
N
F
H
J
L
M
N
O
1.00 0.1
P
1
DC INPUT (V )
IN
ON/OFF CONTROL (V )
2
C
DC OUTPUT (V )
3
O
N.C
4
GND
5
1 2 3 4 5
+
_
+
_
+
_
+
_
+
_
+
_
+
_
+
_
+
_
+
_
+
_
MAXIMUM RATINGS (Ta=25 )
ITEM
OUTPUT VOLTAGE (Typ.)
UNIT
KIA78R25F
2.5
V
KIA78R30F
3.0
KIA78R33F
3.3
KIA78R35F
3.5
KIA78R37F
3.7
CHARACTERISTIC
SYMBOL
RATING
UNIT
REMARK
Input Voltage
V
IN
35
V
-
ON/OFF Control Voltage
V
C
35
V
-
Output Current
I
O
1
A
-
Power Dissipation 1
P
d
8
W
Infinite heat sink
Junction Temperature
T
j
125
-
Operating Temperature
T
opr
-20 80
-
Storage Temperature
T
stg
-30 125
-
Soldering Temperature (10sec)
T
sol
260
-
2001. 5. 31
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KIA78R25F~KIA78R37F
Revision No : 1
OVER HEAT
PROTECTION
CONTROL
OUTPUT ON/OFF
ASO
PROTECTION
BANDGAP
REFERENCE
-
+
1
2
3
5
V
o
V
IN
Control
GND
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, I
O
=0.5A, Ta=25 , Note1.)
CHARACTERISTIC
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Output Voltage
KIA78R25
V
O
-
2.438
2.50
2.562
V
KIA78R30
-
2.925
3.00
3.075
KIA78R33
-
3.220
3.30
3.380
KIA78R35
-
3.413
3.50
3.587
KIA78R37
-
3.608
3.70
3.792
Load Regulation
Reg Load
I
O
=5mA 1A
-
0.1
2.0
%
Line Regulation
Reg Line
(Note 2)
-
0.5
2.5
%
Temperature Coefficient of Output Voltage
T
C
V
O
Tj=0 125
-
0.02
0.05
%/
Ripple Rejection
R R
-
45
55
-
dB
Drop Out Voltage
V
D
I
O
=1A
-
-
0.5
V
Output ON state for control Voltage
V
C(ON)
-
2.0
-
-
V
Output ON state for control Current
I
C(ON)
V
C
=2.7V
-
-
20
A
Output OFF state for control Voltage
V
C(OFF)
-
-
-
0.8
V
Output OFF state for control Current
I
C(OFF)
V
C
=0.4V
-
-
-0.4
mA
Quiescent Current
I
Q
I
O
=0
-
-
10
mA
Note1) V
IN
of KIA78R25=4.2V
Note2) V
IN
of KIA78R25=3.2 10V
Note3) At V
IN
=0.95V
O
" KIA78R30=4.7V
" KIA78R30=3.7 10V
" KIA78R33=5.0V
" KIA78R33=4.0 10V
" KIA78R35=5.2V
" KIA78R35=4.2 10V
" KIA78R37=5.4V
" KIA78R37=4.4 10V
BLOCK DIAGRAM
2001. 5. 31
3/5
KIA78R25F~KIA78R37F
Revision No : 1
1
3
5
2
A
A
A
V
0.33
F
I
I
R
I
q
c
L
o
V
o
c
V
V
IN
47
F
Fig. 1 Standard Test Circuit
KIA78RXXF
Specific IC
2
1
5
3
ON/OFF
signal
C
o
Load
V
o
High or Open:Output ON
Low
:Output OFF
CMOS or TTL
IN
V
Fig. 2 Application Circuit for Standard
1
3
5
V
0.33
F
R
L
e
o
V
IN
47
F
Fig. 1-2 Ripple Rejection Test Circuit
e
i
f=120Hz(sine wave)
ei=0.5Vrms
RR=20log(ei/eo)
KIA78RXXF
2
2001. 5. 31
4/5
KIA78R25F~KIA78R37F
Revision No : 1
o
OUTPUT VOLTAGE DEVIATION V (mV)
-100
-25
JUNCTION TEMPERATURE T ( C)
j
j
o
Fig.5-1 T - V (KIA78R25)
0
25
50
75
100
125
-50
0
50
100
150
V =4.2V
I =0.5A
IN
O
j
JUNCTION TEMPERATURE T ( C)
Fig.5-3 T - V (KIA78R33)
-150
OUTPUT VOLTAGE DEVIATION V (mV)
o
O
V =5.0V
I =0.5A
-25
IN
0
75
50
25
j
o
100
125
-100
-50
0
50
100
150
200
RELATIVE OUTPUT VOLTAGE (%)
0
0
OUTPUT CURRENT I (A)
O
Fig.4 I - V
0.5
1.0
1.5
2.0
20
40
60
80
100
O
O
OUTPUT VOLTAGE DEVIATION V (mV)
JUNCTION TEMPERATURE T ( C)
50
0
-50
-100
-25
-150
0
50
25
75
125
j
100
Fig.5-4 T - V (KIA78R35)
I =0.5A
V =5.2V
200
150
100
o
O
IN
j
o
OUTPUT VOLTAGE DEVIATION V (mV)
25
JUNCTION TEMPERATURE T ( C)
-25
-100
-50
0
50
0
100
50
75
j
125
Fig.5-2 T - V (KIA78R30)
150
100
o
I =0.5A
V =4.7V
O
IN
j
o
D
POWER DISSIPATION P (W)
0
-20
AMBIENT TEMPERATURE Ta ( C)
Fig.3 Ta - P
0
50
100
150
5
8
10
P :With infinite heat sink
D
P
D
Note) Oblique line portion : Overheat
protection may operate in this
area.
D
80
2001. 5. 31
5/5
KIA78R25F~KIA78R37F
Revision No : 1
Fig.7 T - I
JUNCTION TEMPERATURE T ( C)
0
-25
QUIESCENT CURRENT I (mA)
q
j
q
j
0
25
50
75
100
125
2
4
6
8
10
V =35V
I =0
IN
O
Fig.8-1 f - RR
INPUT RIPPLE FREQUENCY f (kHz)
0.1
0
RIPPLE REJECTION RR (dB)
10
20
30
40
50
60
70
80
1
10
100
I =0.5A,ei=0.5V
V =4.2V(KIA78R25)
O
IN
rms
V =5.2V(KIA78R35)
IN
RIPPLE REJECTION RR (dB)
OUTPUT CURRENT I (A)
V =5.2V(KIA78R35)
V =4.2V(KIA78R25)
C =3.3
F
0.1
20
IN
IN
ref
rms
Fig.10-2 I - RR
O
O
f=120Hz,ei=0.5V
0.5
1.0
30
40
50
60
70
V =4.7V(KIA78R30)
IN
V =5.0V(KIA78R33)
IN
V =5.0V(KIA78R33)
IN
V =5.4V(KIA78R37)
IN
V =4.7V(KIA78R30)
IN
V =5.4V(KIA78R37)
IN
Fig.6 T - V
JUNCTION TEMPERATURE T ( C)
0
-25
DROPOUT VOLTAGE V (V)
D
j
I =1A
O
D
j
0
25
50
75
100
125
0.1
0.2
0.3
0.4
0.5
I =0.75A
O
I =0.5A
O
I =0.25A
O
Fig.5-5 T - V (KIA78R37)
JUNCTION TEMPERATURE T ( C)
-150
OUTPUT VOLTAGE DEVIATION V (mV)
-25
-200
0
25
50
o
j
I =0.5A
V =5.4V
100
-50
-100
50
0
200
150
250
O
IN
o
100
j
75
125
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