NJM2386/88
- 1 -
Ver.2004-06-21
NJM2388F
LOW DROPOUT VOLTAGE REGULATOR WITH ON/OFF CONTROL
!
GENERAL DESCRIPTION
!
PACKAGE OUTLINE
The NJM2388 is low dropout voltage regulator with ON/OFF control.
The output current is up to 1.0A and dropout voltage is 0.2V typ. at
Io=0.5A.
The NJM2388 is suitable for power module, TV, Display, car stereo
and low power applications.
!
FEATURE
"
Low Dropout Voltage
0.2V typ. at Io=0.5A
"
Output Current
Io(max.)=1.0A
"
ON/OFF Control
(Active High)
"
Internal Short Circuit Current Limit
"
Internal Thermal Overload Protection
"
Bipolar Technology
"
Package Outline
TO-252-5(NJM2386), TO-220F-4(NJM2388)
!
PIN CONFIGURATION
!
EQUIVALENT CIRCUIT
PIN FUNCTION
1. V
IN
2. V
OUT
3. GND
4. ON/OFF CONTROL
NJM2388F
NJM2386DL2
PIN FUNCTION
1. V
IN
2. ON/OFF CONTROL
3. V
OUT
4. N.C.
5. GND
NJM2386DL2
1
2
3
4
5
3
1 2 3 4
ON/OFF
control
Over Voltage
Protection
Bandgap
Reference
V
IN
Cont
GND
V
OUT
Over Current
Protection
Thermal
Protection
NJM2386/88
- 2 -
Ver.2004-06-21
!
OUTPUT VOLTAGE RANK LIST
Device Name
V
OUT
Device
Name
V
OUT
NJM2386DL2-33 3.3V
NJM2388F33 3.3V
NJM2386DL2-05 5.0V
NJM2388F05 5.0V
NJM2386DL2-63 6.3V
NJM2388F63 6.3V
NJM2386DL2-08 8.0V
NJM2388F08 8.0V
NJM2386DL2-09 9.0V
NJM2388F84 8.4V
NJM2386DL2-12 12.0V
NJM2388F09 9.0V
NJM2388F12
12.0V
!
ABSOLUTE
MAXIMUM
RATINGS
(Ta=25
C)
PARAMETER SYMBOL
RATINGS
UNIT
Input Voltage
V
IN
+35 V
Control Voltage
V
CONT
+35(*1) V
Output Current
Io
1.0
A
NJM2386
10(Tc
25
C) / 1(Ta
25
C)
Power Dissipation
P
D
NJM2388
18(Tc<50
C)
W
Operating Junction Temperature Range
Tj
-40
+150
C
Operating Temperature Range
Topr
-40
+85
C
Storage Temperature Range
Tstg
-50
+150
C
(*1): When input voltage is less than +35V, the absolute maximum control voltage is equal to the input voltage.
!
ELECTRICAL CHARACTERISTICS (V
IN
=V
O
+1V, Io=0.5A, C
IN
=0.33
F, Co=22
F, Ta=25
C)
Measurement is to be conducted is pulse testing.
PARAMETER SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Output Voltage
Vo
V
IN
=V
O
+1V -2%
-
+2%
V
Line Regulation
Vo-V
IN
V
IN
=V
O
+1V
V
O
+17V
- 0.04
0.16
%/V
Load Regulation
Vo-Io V
IN
=V
O
+2V,Io=0A
1.0A
- 0.2
1.4
%/A
Average Temperature
Coefficient of Output Voltage
Vo/
T Tj=0
+125
C
-
0.02
-
%/
C
Quiescent Current
I
Q
Io=0A
-
-
5 mA
Dropout Voltage
V
I-O
Io=0.5A -
0.2
0.5
V
NJM238**33 54
67
-
NJM238**05
54 67 -
NJM238**63
54 67 -
NJM238**08
52 65 -
NJM238**84
52 65 -
NJM238**09
52 65 -
Ripple Rejection
NJM238**12
RR
V
IN
=V
O
+2V,
ein=0.5Vrms
,
f=120Hz
50 63 -
dB
ON Control Voltage
V
CONT(ON)
2.0(*2)
-
-
V
OFF Control Voltage
V
CONT(OFF)
-
-
0.4
V
ON Control Current
I
CONT(ON)
V
C
=2.7V -
-
20
A
OFF Control Current
I
CONT(OFF)
V
C
=0.4V -
-
-20
A
(*2): When ON/OFF CONTROL Terminal is open, Output Voltage is ON.
NJM2386/88
- 3 -
Ver.2004-06-21
!
THERMAL CHARACTERISTICS
NJM2386
(TO-252-5)
NJM2388
(TO-220F-4)
Junction-to-Ambient Temperature
ja
125 60
Thermal Resistance
Junction to case
jc
12.5 5
C/W
!
POWER DISSIPATION vs. AMBIENT TEMPERATURE
!
TEST CIRCUIT
A
Io
22
F
Vo
0.33
F
V
IN
R
L
NJM2386/88
+
I
Q
+
V
C
A
V
A
I
C
V
IN
V
OUT
GND
Control
NJM2388F
(Topr=-40~+85C,Tj=~+150C,P
D
=18W(T
C
<50C))
0
2
4
6
8
10
12
14
16
18
20
-50
-25
0
25
50
75
100
Ambient Temperature Ta(C)
P
o
wer
Di
s
s
i
pa
t
i
on P
D
(W
)
Infinuit Heat Sink
Without Heat Sink
NJM2386DL2
(Topr=-40~+85C,Tj=~+150C,P
D
=10W(T
C
25C),P
D
=1W(Ta
25C))
0
2
4
6
8
10
12
-50
-25
0
25
50
75
100
Ambient Temperature Ta(C)
P
o
we
r
Di
s
s
i
pa
t
i
on
P
D
(W)
Infinuit Heat Sink
Without Heat Sink
HS
=5C/W
HS
=20C/W
HS
=10C/W
NJM2386/88
- 4 -
Ver.2004-06-21
!
TYPICAL APPLICATION
1
In the case where ON/OFF Control is not required:
Connect control terminal to V
IN
terminal or open.
2
In use of ON/OFF CONTROL:
State of control terminal:
"H" or "open"
output is enabled.
"L"
output is disabled.
V
OUT
CONTROL
GND
0.33
F
V
OUT
V
IN
V
IN
NJM2386 / 88
22
F
+
+
+
+
R
C
V
OUT
CONTROL
GND
0.33
F
V
OUT
V
IN
V
IN
NJM2386 / 88
22
F
NJM2386/88
- 5 -
Ver.2004-06-21
!
TYPICAL CHARACTERISTICS
4
4.5
5
5.5
6
4
4.5
5
5.5
6
O
u
t
p
u
t
V
o
l
t
a
g
e
:
V
o
(V
)
Input Voltage : V
IN
(V)
NJM2386/88_5.0V
Output Voltage vs. Input Voltage
@:Ta=25
o
C
Co=22uF
Io=0A
Io=0.5A
Io=1A
0
1
2
3
4
5
6
0
500
1000
1500
2000
2500
0
1
2
3
4
5
6
NJM2386/88_5.0V
Output Voltage vs. Output Current
@:Ta=25
o
C
Co=22uF
Out
p
u
t
V
o
l
t
a
g
e
:
V
o
(
V
)
Output Current : Io(A)
0
0.5
1
1.5
2
2.5
V
IN
=Vo+1
V
IN
=Vo+12
V
IN
=35V
0
5
10
15
20
25
30
0
0.5
1
1.5
Gr
o
u
n
d
P
i
n
C
u
r
r
e
n
t
:
I
GN
D
(m
A
)
NJM2386/88_5.0V
Ground Pin Current vs. Output Current
@:Ta=25
o
C
V
IN
=6V
Co=22uF
Output Current : I
O
(A)
0
0.2
0.4
0.6
0.8
1
0
0.5
1
1.5
Output Current:Io(A)
@:Ta=25
o
C
Co=22uF
D
r
op
o
u
t
V
o
l
t
a
g
e
:
dV
I-
O
(V
)
NJM2386/88_5.0V
Dropout Voltage vs. Output Current
-2
-1.5
-1
-0.5
0
0
1
2
3
Co
nt
r
o
l
C
u
r
r
e
n
t
: I
Co
n
t
(u
A
)
Control Voltage : V
Cont
(V)
NJM2386/88_5.0V
Control Current vs. Control Voltage
@:Ta=25
o
C
V
IN
=6V
Co=22uF
Io=0.5A
Rc=0
, 50k
, 100k
0
1
2
3
4
5
6
0
0.5
1
1.5
2
Ou
t
p
u
t
Vo
l
t
a
g
e
:
V
o
(
V
)
Control Voltage : V
Cont
(V)
NJM2386/88_5.0V
Output Voltage vs. Control Voltage
Rc=0
Rc=50
Rc=100k
@:Ta=25
o
C
V
IN
=6V
Co=22uF
Io=0.5A
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