KEC KIA78MR25PI

SEMICONDUCTOR
KIA78MR18PI~KIA78MR37PI
TECHNICAL DATA
BIPOLAR LINEAR INTEGRATED CIRCUIT
4 TERMINAL LOW DROP VOLTAGE REGULATOR
The KIA78MR×× 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.
C
F
A
O
G
B
E
V
V
L
U
L
K
T
S
R
J
H
FEATURES
D
・0.5A Output Low Drop Voltage Regulator.
・Built in ON/OFF Control Terminal.
DIM MILLIMETERS
_ 0.20
A
10.00 +
_ 0.20
15.00 +
B
_ 0.20
C
2.70 +
_ 0.10
D
0.60 +
_ 0.20
E
Φ3.20 +
_ 0.10
3.50 +
F
_ 0.20
15.70 +
G
_ 0.10
H
0.40 +
14.3+0.2/-0.1
J
_ 0.10
1.45 +
K
_ 0.10
L
1.00 +
2.54
M
_ 0.20
N
4.50 +
_ 0.1
O
7.5+
_ 0.10
1.50 +
P
R
S
M
T
U
V
・Built in Over Current Protection, Over Heat
N
Protection Function.
1
2
3
4
P
1
2
3
4
5
8
_ 0.1
1.30 +
_ 0.1
3-1.00 +
_ 0.1
1.30 +
DC INPUT (V IN )
DC OUTPUT (VO )
GND
ON/OFF CONTROL
TO-220IS-4
LINE UP
ITEM
OUTPUT VOLTAGE (Typ.)
* KIA78MR18PI
1.8
* KIA78MR25PI
2.5
* KIA78MR30PI
3.0
* KIA78MR33PI
3.3
* KIA78MR35PI
3.5
* KIA78MR37PI
3.7
UNIT
V
Note) * : Under development
MAXIMUM RATING (Ta=25℃)
CHARACTERISTIC
SYMBOL
RATING
UNIT
Remark
Input Voltage
VIN
35
V
-
ON/OFF Control Voltage
VC
35
V
-
Output Current
IO
0.5
A
-
Power Dissipation 1
Pd1
1.5
W
No heatsink
Power Dissipation 2
Pd2
15
W
with heatsink
Junction Temperature
Tj
125
℃
-
Operating Temperature
Topr
-20~80
℃
-
Storage Temperature
Tstg
-30~125
℃
-
Soldering Temperature (10sec)
Tsol
260
℃
-
2002. 1. 9
Revision No : 0
1/5
KIA78MR18PI~KIA78MR37PI
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, IO=0.25A, Ta=25℃, Note1.)
CHARACTERISTIC
Output Voltage
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
KIA78MR18
-
1.764
1.80
1.836
KIA78MR25
-
2.438
2.50
2.562
-
2.925
3.00
3.075
-
3.220
3.30
3.380
KIA78MR35
-
3.413
3.50
3.587
KIA78MR37
-
3.608
3.70
3.792
KIA78MR30
VO
KIA78MR33
UNIT
V
Load Regulation
Reg Load
IO=5mA~0.5A
-
0.1
2.0
%
Line Regulation
Reg Line
(Note 2)
-
0.5
2.5
%
Tj=0~125℃
-
±0.02
±0.05
%/℃
55
65
-
dB
-
-
0.5
V
2.0
-
-
V
-
-
20
μA
-
-
0.8
V
VC=0.4V
-
-
-0.4
mA
IO=0
-
-
10
mA
TCVO
Temperature Coefficient of Output Voltage
Ripple Rejection
R・R
Drop Out Voltage
VD
Output ON state for control Voltage
VC(ON)
Output ON state for control Current
IC(ON)
Output OFF state for control Voltage
VC(OFF)
Output OFF state for control Current
IC(OFF)
IQ
Quiescent Current
Note1) VIN of KIA78MR18=3.5V
IO=0.5A (Note3)
VC=2.7V
-
Note2) VIN of KIA78MR18=2.5~10V
"
KIA78MR25=4.2V
"
KIA78MR25=3.2~10V
"
KIA78MR30=4.7V
"
KIA78MR30=3.7~10V
"
KIA78MR33=5.0V
"
KIA78MR33=4.0~10V
"
KIA78MR35=5.2V
"
KIA78MR35=4.2~10V
"
KIA78MR37=5.4V
"
KIA78MR37=4.4~10V
Note3) At VIN=0.95VO
BLOCK DIAGRAM
2 Vo
VIN 1
+
BANDGAP
REFERENCE
4
ASO
PROTECTION
OUTPUT ON/OFF
CONTROL
Control
OVER HEAT
PROTECTION
3
GND
2002. 1. 9
Revision No : 0
2/5
KIA78MR18PI~KIA78MR37PI
Fig. 1 Standard Test Circuit
V IN
1
Vo
2
KIA78MRXXPI
4
Vc
3
47µF
A
0.33µF
A
Io
A
V
RL
Ic
Iq
Fig. 1-2 Ripple Rejection Test Circuit
1
2
KIA78MRXXPI
4
ei
3
RL
47µF
V IN
0.33µF
V
eo
f=120Hz(sine wave)
ei=0.5Vrms
RR=20log(ei/eo)
Fig. 2 Application Circuit for Standard
1
2
Specific IC
Vo
Co
Load
V IN
3
4
ON/OFF
signal
High or Open:Output ON
:Output OFF
Low
CMOS or TTL
2002. 1. 9
Revision No : 0
3/5
KIA78MR18PI~KIA78MR37PI
POWER DISSIPATION PD (W)
20
Fig.4
Ta - P D
P D1:No heat sink
p D 2:With infinite heat sink
PD 2
15
10
5
P D1
0
-25
0
50
100
150
RELATIVE OUTPUT VOLTAGE (%)
Fig.3
I O - VO
100
80
60
40
20
0
0
0.25
AMBIENT TEMPERATURE Ta ( C)
0.50
0.75
1.0
OUTPUT CURRENT I O (A)
Note) Oblique line portion : Overheat
protection may operate in this
area.
100
Fig.5-2 T j -
Vo (KIA78MR25)
Vo (mV)
150
Tj -
VIN =4.2V
I O =0.25A
50
0
-50
-100
-25
0
25
50
75
100
125
OUTPUT VOLTAGE DEVIATION
OUTPUT VOLTAGE DEVIATION
Vo (mV)
Fig.5-1
150
100
0
-50
-100
-25
100
Vo (mV)
VIN =5.0V
I O =0.25A
0
-50
0
25
50
75
100
JUNCTION TEMPERATURE T j ( C)
2002. 1. 9
Revision No : 0
25
Fig.5-4 T j -
Vo (KIA78MR33)
50
-100
-25
0
50
75
100
125
JUNCTION TEMPERATURE Tj ( C)
125
OUTPUT VOLTAGE DEVIATION
Vo (mV)
OUTPUT VOLTAGE DEVIATION
150
Tj -
VIN =4.7V
IO =0.25A
50
JUNCTION TEMPERATURE T j ( C)
Fig.5-3
Vo (KIA78MR30)
150
100
Vo (KIA78MR35)
VIN =5.2V
IO =0.25A
50
0
-50
-100
-25
0
25
50
75
100
JUNCTION TEMPERATURE T j ( C)
4/5
Fig.5-5
Tj -
Vo (KIA78MR37)
Fig.6
250
150
100
50
0
-50
-100
-150
-200
-25
0
25
50
75
100
0.4
I O =0.5A
0.3
0.2
I O=0.25A
0.1
0
125
-25
JUNCTION TEMPERATURE T j ( C)
Fig.7
0
25
50
75
100
125
JUNCTION TEMPERATURE T j ( C)
Fig.8 f - RR
T j - IQ
80
10
V IN =35V
IO =0
8
RIPPLE REJECTION RR (dB)
QUIESCENT CURRENT IQ (mA)
T j - VD
0.5
V IN =5.4V
IO =0.25A
200
DROPOUT VOLTAGE V D (V)
OUTPUT VOLTAGE DEVIATION
Vo (mV)
KIA78MR18PI~KIA78MR37PI
6
4
2
0
-25
0
25
50
75
100
125
JUNCTION TEMPERATURE T j ( C)
Fig.9
70
60
50
40
30
20
10
IO =0.25A,ei=0.5Vrms
0
0.1
1
10
100
INPUT RIPPLE FREQUENCY f (kHz)
I O - RR
RIPPLE REJECTION RR (dB)
80
70
60
50
40
f=120Hz,ei=0.5Vrms
C ref =3.3µF
30
0
0.25
0.5
OUTPUT CURRENT I O (A)
2002. 1. 9
Revision No : 0
5/5