NJM2370
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NJM2370_databook00_01
LOW DROPOUT VOLTAGE REGULATOR WITH ON/OFF CONTROL
s
GENERAL DESCRIPTION
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PACKAGE OUTLINE
The NJM2370 is a low dropout voltage regulator with
ON/OFF control.
It features dropout voltage of 0.1V at Io=30mA, low
output noise and high ripple rejection by connecting an
external capaciter to noise bypass terminal.
It's suitable for portable items such as cellular phones,
video camera and others.
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FEATURES
q
Output Current
(150mA min. (Vo-0.3V))
q
Low Dropout Voltage (0.1V typ. (Io=30mA))
q
External Capaciter for Noise Bypass
q
ON/OFF Control Function
q
Over Current Limit
q
Thermal Shutdown
q
Bipolar Technology
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Package Outline
SOT-89(5pin), VSP8
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PIN CONFIGURATION
5 4
1 2 3
1
2
3
4
5
6
7
8
NJM2370U
NJM2370R
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EQUIVALENT CIRCUIT
V
OUT
GND
V
IN
Thermal
Protection
Bandgap
Reference
NOISE
BYPASS
CONT
PIN FUNCTION
1.
CONTROL
2.
GND
3.
NOISE BYPASS
4.
V
OUT
5.
V
IN
NJM2370U NJM2370R
PIN FUNCTION
1. CONTROL
2. GND
3. NC
4. NOISE BYPASS
5. V
OUT
6. NC
7. NC
8. V
IN
NJM2370
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ABSOLUTE MAXIMUM RATINGS
(Ta=25
C)
PARAMETER SYMBOL
RATINGS
UNIT
Input Voltage
V
IN
20
V
Control Voltage
V
CONT
20(note
1) V
Power Dissipation
P
D
(SOT-89)
(VSP8)
350
320
mW
Operating Temperature Range
Topr
-
40
+85
C
Storage Temperature Range
Tstg
-
40
+125
C
(note 1)When input voltage is less than +20V, the absolute maximum
control voltage is equal to the input voltage.
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ELECTRICAL CHARACTERISTICS
(Ta=25
C)
PARAMETER SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Output Voltage
Vo
V
IN
=Vo+1V, Io=30mA
-
3%
-
+3% V
Quiescent Current 1
I
Q
1 Io=0mA,expect
I
CONT
-
180
-
A
Quiescent Current 2
I
Q
2
CONTROL
-
GND short
-
-
100 nA
Output Current
Io
(Vo
-
0.3V)
150 180
-
mA
V
IN
=(Vo+1V)
(Vo+6V)
Vo=2V to 14V
-
-
0.12 %/V
Line Regulation
Vo/
V
IN
V
IN
=(Vo+1V)
(Vo+5V)
Vo=15V
-
-
0.12 %/V
Load Regulation
Vo/
Io Io=0
60mA
-
-
0.03 %/mA
Dropout Voltage
V
I
-
O
Io=30mA
-
0.1 0.3 V
Ripple Rejection
R
R
f=400Hz, ein=100mVp-p
V
IN
=Vo+1.5V, Io=10mA
-
60
-
dB
Average Temperature
Coefficient of Output
Voltage
Vo/
Ta Ta=
-
20
75
C, Io=10mA
V
IN
=Vo+1.5V
-
0. 2
-
mV/
C
Output Noise Voltage
V
NO
10Hz< f < 80kHz, Io=10mA, Vo=3V
-
30
-
Vrms
(note 2)Please confirm the specification separately because some parameters depend on output voltage.
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TEST CIRCUIT
2370
+
V
IN
V
IN
V
OUT
CONTROL
NOISE
BYPASS
GND
+
0.1
F
I
IN
I
CONT
V
CONT
Cp
10
F
I
OUT
V
OUT
V
V
A
A
NJM2370
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NJM2370_databook00_01
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TYPICAL APPLICATION
x
In Nonuse of ON/OFF Control
2370
+
V
IN
V
OUT
CONTROL
NOISE
BYPASS
GND
+
0.1
F
Cp=0.1
F
10
F
V
OUT
V
IN
R
(0
300k
)
Connect control terminal(1Pin) to V
IN
terminal(5Pin)
When a resistance "R" is connected, the quiescent current decreases, but minimum operating voltage
increases. Please refer to a figure of Output Voltage vs. Control Voltage.
y
In Use of ON/OFF CONTROL
2370
+
V
IN
V
OUT
CONTROL
NOISE
BYPASS
GND
+
0.1
F
Cp=0.1
F
10
F
V
OUT
V
IN
R
When the control terminal is "H", it is ON.
When the control terminal is "L" or "open", it is OFF.
Noise bypass Capacitance Cp
Noise bypass capacitance CP reduces noise generated by band-gap reference circuit.
Noise level and ripple rejection will be improved when larger CP is used. Please refer to the typical
characteristics to determine the value.
Use of smaller CP value may induce oscillation.
Please make sure to use CP value of greater than 0.1uF to avoid the problem.
NJM2370
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NJM2370_databook00_01
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PACKAGE MARKING
0 5
A
7 0
1
5 4
3
2
1
1 2 3 4
5
6
7
8
A
0
5
7
0
1
J R C
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OUTPUT VOLTAGE RANK LIST
Marking
Marking
Output
Voltage
Part Number
Output
Voltage
Part Number
2.0V NJM2370X02 0 2
3.6V NJM2370X36 3 6 (
1)
2.1V NJM2370X21 2 1
(
1)
3.7V NJM2370X37 3 7 (
1)
2.2V NJM2370X22 2 2
(
1)
3.8V NJM2370X38 3 8 (
1)
2.3V NJM2370X23 2 3
(
1)
3.9V NJM2370X39 3 9 (
1)
2.4V NJM2370X24 2 4
(
1)
4.0V NJM2370X04 0 4
2.5V NJM2370X25 2 5
4.7V NJM2370X47 4 7
2.6V NJM2370X26 2 6
(
1)
5.0V NJM2370X05 0 5
2.7V NJM2370X27 2 7
6.0V NJM2370X06 0 6
2.8V NJM2370X28 2 8
(
1)
8.0V NJM2370X08 0 8 (
1)
2.9V NJM2370X29 2 9
(
1)
9.0V NJM2370X09 0 9
3.0V NJM2370X03 0 3
10.0V NJM2370X10 1 0
3.1V NJM2370X31 3 1
12.0V NJM2370X12 1 2
3.2V NJM2370X32 3 2
(
1)
13.0V NJM2370X13 1 3 (
2)
3.3V NJM2370X33 3 3
15.0V NJM2370X15 1 5
3.5V NJM2370X35 3 5
(
1):SOT-89(5pin) ONLY
(
2):VSP8 ONLY
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POWER DISSIPATION VS. AMBIENT TEMPERATURE
,
Output voltage rank
(Please refer to output voltage
rank list)
Plant code.(NJM2370 is "A")
Last digit of the calendar year
,
Lot Number
0
50
100
150
200
250
300
350
400
0
25
50
75
100
A m bient Tem perature Ta(C)
Power Dissipation P
D
(mW)
VSP8
SO T-89(5pin)
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