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NJM2370RB108

更新时间：2025-05-20 00:30:50
品牌：NJRC
描述：8V FIXED POSITIVE LDO REGULATOR, 0.3V DROPOUT, PDSO8, TVSP-8

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NJM2370RB108 概述

8V FIXED POSITIVE LDO REGULATOR, 0.3V DROPOUT, PDSO8, TVSP-8

NJM2370RB108 数据手册

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NJM2370  
LOW DROPOUT VOLTAGE REGULATOR WITH ON/OFF CONTROL  
ꢀ GENERAL DESCRIPTION  
ꢀ 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.  
NJM2370U/U1 NJM2370R NJM2370RB1  
ꢀ FEATURES  
ꢁ Output Current  
(150mA min. (Vo-0.3V))  
ꢁ Low Dropout Voltage (0.1V typ. (Io=30mA))  
ꢁ External Capaciter for Noise Bypass  
ꢁ ON/OFF Control Function  
ꢁ Over Current Limit  
ꢁ Thermal Shutdown  
ꢁ Bipolar Technology  
ꢁ Package Outline  
SOT-89(5pin), VSP8, TVSP-8  
ꢀ PIN CONFIGURATION  
PIN FUNCTION  
1. CONTROL  
2. GND  
3. NOISE BYPASS  
4. VOUT  
5. VIN  
PIN FUNCTION  
1. CONTROL  
2. GND  
8 7 6 5  
5
2
4
3
3. NC  
4. NOISE BYPASS  
5. VOUT  
1
2
1 2 3 4  
6. NC  
7. NC  
NJM2370U/U1  
ꢀ EQUIVALENT CIRCUIT  
NJM2370R/RB1  
8. VIN  
VIN  
VOUT  
CONT  
Thermal  
Protection  
NOISE  
BYPASS  
Bandgap  
Reference  
GND  
Ver.2004-08-30  
-1-  
NJM2370  
ꢀ ABSOLUTE MAXIMUM RATINGS  
PARAMETER SYMBOL  
Input Voltage  
(Ta=25°C)  
RATINGS  
UNIT  
V
VIN  
20  
Control Voltage  
VCONT  
20(*1)  
V
SOT-89  
VSP8,TVSP8 320  
−40 +85  
350  
Power Dissipation  
PD  
mW  
Operating Temperature Range  
Storage Temperature Range  
Topr  
Tstg  
°C  
°C  
−40 +125  
(*1)When input voltage is less than +20V, the absolute maximum  
control voltage is equal to the input voltage.  
ꢀ ELECTRICAL CHARACTERISTICS  
(Ta=25°C)  
PARAMETER  
Output Voltage  
Quiescent Current 1  
Quiescent Current 2  
Output Current  
SYMBOL  
Vo  
IQ1  
IQ2  
CONDITIONS  
VIN=Vo+1V, Io=30mA  
Io=0mA,expect ICONT  
CONTROL−GND short  
(Vo−0.3V)  
MIN. TYP. MAX. UNIT  
+3%  
V
−3%  
−
−
−
180  
−
100  
µA  
nA  
−
150  
180  
mA  
%/V  
Io  
−
0.12  
Line Regulation  
∆Vo/∆VIN  
VIN=(Vo+1V) (Vo+6V)  
Vo=2V to 14V  
−
−
0.12  
%/V  
VIN=(Vo+1V) (Vo+5V)  
Vo=15V  
−
−
Load Regulation  
Dropout Voltage  
Ripple Rejection  
0.03 %/mA  
∆Vo/∆Io  
∆VI-O  
RR  
Io=0 60mA  
Io=30mA  
f=400Hz, ein=100mVp-p  
VIN=Vo+1.5V, Io=10mA  
−
−
−
−
0.1  
0.3  
V
−
60  
dB  
Average Temperature  
Coefficient of Output  
Voltage  
0. 2  
∆Vo/∆Ta  
Ta=−20 75°C, Io=10mA  
VIN=Vo+1.5V  
−
−
−
−
mV/°C  
Output Noise Voltage  
VNO  
10Hz< f < 80kHz, Io=10mA, Vo=3V  
30  
µVrms  
The above specification is a common specification for all output voltages.  
Therefore, it may be different from the individual specification for a specific output voltage.  
ꢀ TEST CIRCUIT  
IIN  
A
VIN  
VOUT  
+
+
IOUT  
VOUT  
V
VIN  
ＮＪＭ2370  
10µF  
0.1µF  
ICONT  
NOISE  
BYPASS  
A
CONTROL  
GND  
Cp  
V
VCONT  
-2-  
Ver.2004-08-30  
NJM2370  
ꢀ TYPICAL APPLICATION  
1 In Nonuse of ON/OFF Control  
VIN  
VIN  
VOUT  
VOUT  
+
+
µ
0.1 F  
ＮＪＭ2370  
µ
10 F  
R
(0～300kΩ)  
NOISE  
BYPASS  
CONTROL  
GND  
Cp=0.1µF  
Connect control terminal(1Pin) to VIN 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.  
2 In Use of ON/OFF CONTROL  
VIN  
VIN  
VOUT  
VOUT  
+
+
ＮＪＭ2370  
0.1µF  
10µF  
R
NOISE  
BYPASS  
CONTROL  
GND  
µ
Cp=0.1 F  
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.  
Ver.2004-08-30  
-3-  
NJM2370  
ꢀ PACKAGE MARKING  
a1,a2 Output voltage rank  
(Please refer to output voltage  
rank list)  
8
7
6
5
5
5
4
3
a3  
b3  
b2  
A
0
a3 a1 a2  
a3 Plant code.(NJM2370 is ”A”)  
b1 Last digit of the calendar year  
b2,b3 Lot Number  
a2  
7
0
1
b1 b2 b3  
J
R
C
a1  
1
b1  
2
1
2
3
4
ꢀ OUTPUT VOLTAGE RANK LIST  
Marking  
a1 a2  
Marking  
Output  
Output  
Voltage  
3.6V  
3.7V  
3.8V  
3.9V  
4.0V  
4.7V  
5.0V  
6.0V  
8.0V  
8.5V  
Part Number  
Voltage  
Part Number  
a1  
3
a2  
6
2.0V  
2.1V  
2.2V  
2.3V  
2.4V  
2.5V  
2.6V  
2.7V  
2.8V  
2.9V  
3.0V  
3.1V  
3.2V  
3.3V  
3.5V  
NJM2370X02  
NJM2370X21  
NJM2370X22  
NJM2370X23  
NJM2370X24  
NJM2370X25  
NJM2370X26  
NJM2370X27  
NJM2370X28  
NJM2370X29  
NJM2370X03  
NJM2370X31  
NJM2370X32  
NJM2370X33  
NJM2370X35  
0
2
2
2
2
2
2
2
2
2
0
3
3
3
3
2
1
2
3
4
5
6
7
8
9
3
1
2
3
5
NJM2370X36  
NJM2370X37  
NJM2370X38  
NJM2370X39  
NJM2370X04  
NJM2370X47  
NJM2370X05  
NJM2370X06  
NJM2370X08  
NJM2370X85  
NJM2370X09  
NJM2370X10  
NJM2370X12  
NJM2370X13  
NJM2370X15  
3
3
3
0
4
0
0
0
8
0
1
1
1
1
7
8
9
4
7
5
6
8
5
9
0
2
3
5
9.0V  
10.0V  
12.0V  
13.0V  
15.0V  
ꢀ POWER DISSIPATION VS. AMBIENT TEMPERATURE  
400  
SOT-89(5pin)  
350  
300  
VSP8  
, TVSP8  
250  
200  
150  
100  
50  
0
0
25  
50  
75  
100  
Ambient Temperature Ta(°C)  
-4-  
Ver.2004-08-30  
NJM2370  
■ TYPICAL CHARACTERISTICS  
NJM2370U03 / R03 Dropout Voltage  
NJM2370U03 / R03 Load Regulation  
NJM2370U03/R03 GND Current  
vs. Output Current  
NJM2370U03/R03 Dropout Voltage  
vs. Output Current  
Ver.2004-08-30  
- 5 -  
NJM2370  
■ TYPICAL CHARACTERISTICS  
NJM2370U03 / R03 Output Voltage  
vs. Control Voltage  
NJM2370U03 / R03 Control Current  
vs. Control Voltage  
NJM2370U03/R03 Output Noise Voltage vs. Noise Bypass Capacitor  
NJM2370U03/R03 Ripple Rejection vs. Frequency  
Ver.2004-08-30  
- 6 -  
NJM2370  
■ TYPICAL CHARACTERISTICS  
NJM2370U03 / R03 Control Current  
vs. Ambient Temperature  
Dropout Voltage vs. Ambient Temperature  
NJM2370U03 / R03 Quiescent Current 1  
vs. Ambient Temperature  
On Control Voltage vs. Temperature  
Thermal Shutdown  
[CAUTION]  
The specifications on this databook are only  
given for information , without any guarantee  
as regards either mistakes or omissions. The  
application circuits in this databook are  
described only to show representative usages  
of the product and not intended for the  
guarantee or permission of any right including  
the industrial rights.  
Ver.2004-08-30  
- 7 -  

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