2002. 10. 4 1/5
SEMICONDUCTOR
TECHNICAL DATA
KIA78R25API~KIA78R37API
BIPOLAR LINEAR INTEGRATED CIRCUIT
Revision No : 3
4 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 TO-220
4 terminal lead full molded 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.
MAXIMUM RATING (Ta=25 )
LINE UP
ITEM OUTPUT VOLTAGE (Typ.) UNIT
* KIA78R25API 2.5
V
* KIA78R30API 3.0
KIA78R33API 3.3
* KIA78R35API 3.5
* KIA78R37API 3.7
CHARACTERISTIC SYMBOL RATING UNIT Remark
Input Voltage
V
IN
15 V -
ON/OFF Control Voltage
V
C
15 V -
Output Current
I
O
1 A -
Power Dissipation 1
P
d1
1.5 W No heatsink
Power Dissipation 2
P
d2
15 W with heatsink
Junction Temperature
T
j
125 -
Operating Temperature
T
opr
-20 80
-
Storage Temperature
T
stg
-30 125
-
Soldering Temperature (10sec)
T
sol
260 -
Note) * : Under development
C
O
S
H
DIM
A
B
C
D
E
F
G
H
J
R
K
L
M
N
O
P
R
S
T
U
V
DC INPUT (V )
1
DC OUTPUT (V )
2
GND
3
ON/OFF CONTROL
4
MILLIMETERS
_
+
10.00 0.20
_
+
15.00 0.20
_
+
2.70 0.20
_
+
0.60 0.10
_
+
Φ3.20 0.20
_
+
3.50 0.10
_
+
15.70 0.20
_
+
0.40 0.10
14.3+0.2/-0.1
_
+
1.45 0.10
_
+
1.00 0.10
2.54
_
+
4.50 0.20
_
+
7.5 0.1
_
+
1.50 0.10
5
8
_
+
1.30 0.1
_
+
3-1.00 0.1
_
+
1.30 0.1
IN
E
B
L
U
J
P
1234
A
F
G
V
V
L
K
T
D
M
N
TO-220IS-4
O
2002. 10. 4 2/5
KIA78R25API~KIA78R37API
Revision No : 3
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
IO=5mA 1A
- 0.1 2.0 %
Line Regulation Reg Line (Note 2) - 0.5 2.5 %
Temperature Coefficient of Output Voltage
TCV
O
Tj=0 125
-
0.02 0.05 %/
Ripple Rejection
R R
- 45 55 - dB
Drop Out Voltage
V
D
IO=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)
VC=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)
VC=0.4V
- - -0.4 mA
Quiescent Current
I
Q
IO=0
- - 10 mA
Note1) VINof KIA78R25=4.2V Note2) VINof KIA78R25=3.2 10V Note3) At VIN=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
V
IN
Control
1
BANDGAP
REFERENCE
4
OUTPUT ON/OFF
CONTROL
ASO
PROTECTION
V
2
o
-
+
OVER HEAT
PROTECTION
3
GND
2002. 10. 4 3/5
KIA78R25API~KIA78R37API
Revision No : 3
Fig. 1 Standard Test Circuit
V
IN
12
V
o
KIA78RXXAPI
3
0.33µF
A
I
q
Fig. 1-2 Ripple Rejection Test Circuit
12
KIA78RXXAPI
e
i
3
V
IN
0.33µF
V
c
4
A
47µF
I
c
4
R
47µF
L
I
o
A
V
R
L
V
e
o
f=120Hz(sine wave)
ei=0.5Vrms
RR=20log(ei/eo)
Fig. 2 Application Circuit for Standard
V
IN
1
Specific IC
4
ON/OFF
signal
CMOS or TTL
2
3
High or Open : Output ON
Low
V
o
C
o
: Output OFF
Load
2002. 10. 4 4/5
KIA78R25API~KIA78R37API
Revision No : 3
j
Fig.3 Ta - P
20
D
15
10
5
POWER DISSIPATION P (W)
0
-25
AMBIENT TEMPERATURE Ta ( C)
Note) Oblique line portion : Overheat
protection may operate in this
area.
Fig.5-1 T - V (KIA78R25)
150
100
V =4.2V
IN
I =0.5A
O
o
P 1:No heat sink
D
p 2:With infinite heat sink
D
P 2
D
P 1
D
0 50 100 150
j
D
Fig.4 I - V
OO
100
80
60
40
20
RELATIVE OUTPUT VOLTAGE (%)
0
0
o
150
o
0.5 1.0 1.5 2.0
OUTPUT CURRENT I (A)
Fig.5-2 T - V (KIA78R30)
V =4.7V
IN
I =0.5A
O
j
O
o
100
50
0
-50
-100
OUTPUT VOLTAGE DEVIATION V (mV)
-25
0 25 50 75 100 125
JUNCTION TEMPERATURE T ( C)
Fig.5-3 T - V (KIA78R33)
150
V =5.0V
o
100
IN
I =0.5A
O
o
j
50
0
50
0
-50
-100
0 10050 75
OUTPUT VOLTAGE DEVIATION V (mV)
j
-25
JUNCTION TEMPERATURE T ( C)
Fig.5-4 T - V (KIA78R35)
150
V =5.2V
o
IN
I =0.5A
O
25
j
o
j
125
100
50
0
-50
-100
OUTPUT VOLTAGE DEVIATION V (mV)
-25
0 25 50 75 100 125
JUNCTION TEMPERATURE T ( C)
-50
-100
0 10050 75
OUTPUT VOLTAGE DEVIATION V (mV)
25-25
JUNCTION TEMPERATURE T ( C)
j
2002. 10. 4 5/5
KIA78R25API~KIA78R37API
Revision No : 3
Fig.5-5 T - V (KIA78R37)
o
j
250
V =5.4V
200
IN
I =0.5A
O
o
150
100
50
0
-50
-100
-150
-200
-25
OUTPUT VOLTAGE DEVIATION V (mV)
02550
JUNCTION TEMPERATURE T ( C)
Fig.7 T - I
10
V =35V
IN
I =0
O
8
q
q
j
6
4
2
QUIESCENT CURRENT I (mA)
0
-25
0 25 50 75 100 125
100
75 125
j
Fig.6 T - V
0.5
0.4
D
0.3
0.2
0.1
DROPOUT VOLTAGE V (V)
0
-25
0 25 50 75 100 125
JUNCTION TEMPERATURE T ( C)
Fig.8-1 f - RR
80
70
60
50
40
I =0.5A,ei=0.5V
O
30
V =4.2V(KIA78R25)
IN
V =4.7V(KIA78R30)
IN
20
V =5.0V(KIA78R33)
IN
V =5.2V(KIA78R35)
RIPPLE REJECTION RR (dB)
IN
10
V =5.4V(KIA78R37)
IN
0
0.1
rms
110100
I =1A
O
j
D
I =0.75A
O
I =0.5A
O
I =0.25A
O
j
JUNCTION TEMPERATURE T ( C)
Fig.10-2 I - RR
70
60
50
f=120Hz,ei=0.5V
40
C =3.3µF
ref
V =4.2V(KIA78R25)
IN
V =4.7V(KIA78R30)
30
RIPPLE REJECTION RR (dB)
20
IN
V =5.0V(KIA78R33)
IN
V =5.2V(KIA78R35)
IN
V =5.4V(KIA78R37)
IN
0.1
OUTPUT CURRENT I (A)
O
rms
0.5 1.0
O
j
INPUT RIPPLE FREQUENCY f (kHz)
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