NJM2370
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LOW DROPOUT VOLTAGE REGULATOR WITH ON/OFF CONTROL
■ GENERAL DESCRIPTION ■ PACKAGE OUTLINE
The NJM2370 is a low dropout positive voltage regulator
with ON/OFF control. It has a low quiescent current, output
current of 150mA and low dropout voltage of 0.1V (at
IO=30mA). Further it can be added an external noise
bypass capacitor. It can be improve the characteristics of
output noise and ripple rejection by changing the
capacitance value.
The NJM2370 is available in a small 5-lead SOT-89
package and thin 8-lead MSOP (VSP) and MSOP (TVSP)
packages. These performances make it well-suited for
battery-powered portable devices such as a mobile phone,
PHS and movie camera.
■ FEATURES
● Output Current (150mA min. (VO-0.3V))
● Low Dropout Voltage (0.1V typ. (IO=30mA))
● External Capacitor for Noise Bypass
● ON / OFF Control Function
● Over Current Limit
● Thermal Shutdown
● Bipolar Technology
● Package Outline SOT-89-5, MSOP8 (VSP8)*, MSOP8 (TVSP8)**
*MEET JEDEC MO-187-DA, **MEET JEDEC MO-187-DA / THIN TYPE
■ PIN CONFIGURATION
■ EQUIVALENT CIRCUIT
NJM2370U1
PIN FUNCTION
1. CONTROL
2. GND
3. NOISE BYPASS
4. VOUT
5. VIN
NJM2370R/RB1
PIN FUNCTION
1. CONTROL
2. GND
3. NC
4. NOISE BYPASS
5. VOUT
6. NC
7. NC
8. VIN
NJM2370U1
(SOT89-5)
NJM2370R
(MSOP8 (VSP8))
NJM2370RB1
(MSOP8 (TVSP8))
NJM2370
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■ ABSOLUTE MAXIMUM RATINGS (Ta=25°C)
PARAMETER SYMBOL RATINGS UNIT
Input Voltage VIN 20 V
Control Voltage VCONT 20 (note 1) V
Power Dissipation PD (SOT-89) 350
MSOP8 (VSP8), MSOP8(TVSP8) 320 mW
Operating Temperature Range Topr -40 to +85 °C
Storage Temperature Range Tstg -40 to +125 °C
(note 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 SYMBOL CONDITIONS MIN. TYP. MAX. UNIT
Output Voltage VO V
IN=VO+1V, IO=30mA -3% - +3% V
Quiescent Current 1 IQ1 IO=0mA, expect ICONT - 180 - µA
Quiescent Current 2 IQ2 CONTROL-GND short - - 100 nA
Output Current IO (VO-0.3V) 150 180 - mA
Line Regulation ∆VO / ∆VIN V
IN=(VO+1V) to (VO+6V)
VO=2V to 14V
- - 0.12 % / V
V
IN=(VO+1V) to (VO+5V)
VO=15V
- - 0.12 % / V
Load Regulation ∆VO / ∆IO I
O=0 to 60mA - - 0.03 % / mA
Dropout Voltage ∆VI-O I
O=30mA - 0.1 0.3 V
Ripple Rejection R·R f=400Hz, ein=100mVP-P
VIN= VO+1.5V, IO=10mA
- 60 - dB
Average Temperature
Coefficient of Output Voltage
∆VO / ∆Ta Ta=-20 to 75°C, IO=10mA
VIN=VO+1.5V
- 0.2 - mV / °C
Output Noise Voltage VNO 10Hz < f < 80kHz, IO=10mA, VO=3V - 30 - µVrms
(note 2) Please confirm the specification separately because some parameters depend on output voltage.
■ TEST CIRCUIT
NJM2370
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■ TYPICAL APPLICATION
(1) In Nonuse of ON / OFF Control
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
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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■ OUTPUT VOLTAGE RANK LIST
Past Number Output
Voltage
Past Number Output
Voltage Past Number Output
Voltage
NJM2370U1/R/RB1-02 2.0V NJM2370U1/R/RB1-31 3.1V NJM2370U1/R/RB1-08 8.0V (*1)
NJM2370U1/R/RB1-21 2.1V (*1) NJM2370U1/R/RB1-32 3.2V (*1) NJM2370U1/R/RB1-85 8.5V
NJM2370U1/R/RB1-22 2.2V (*1) NJM2370U1/R/RB1-33 3.3V NJM2370U1/R/RB1-09 9.0V
NJM2370U1/R/RB1-23 2.3V (*1) NJM2370U1/R/RB1-35 3.5V NJM2370U1/R/RB1-10 10.0V
NJM2370U1/R/RB1-24 2.4V (*1) NJM2370U1/R/RB1-36 3.6V (*1) NJM2370U1/R/RB1-12 12.0V
NJM2370U1/R/RB1-25 2.5V NJM2370U1/R/RB1-37 3.7V (*1) NJM2370U1/R/RB1-13 13.0V (*2)
NJM2370U1/R/RB1-26 2.6V (*1) NJM2370U1/R/RB1-38 3.8V (*1) NJM2370U1/R/RB1-D3 13.5V
NJM2370U1/R/RB1-27 2.7V NJM2370U1/R/RB1-39 3.9V (*1) NJM2370U1/R/RB1-15 15.0V
NJM2370U1/R/RB1-28 2.8V (*1) NJM2370U1/R/RB1-04 4.0V NJM2370U1/R/RB1-F5 15.5V
NJM2370U1/R/RB1-29 2.9V (*1) NJM2370U1/R/RB1-05 5.0V
NJM2370U1/R/RB1-03 3.0V NJM2370U1/R/RB1-06 6.0V
(*1) : MSOP8(VSP8), MSOP8(TVSP8) ONLY
(*2) : SOT-89-5 (5pin) ONLY
■ POWER DISSIPATION VS. AMBIENT TEMPERATURE
NJM2370 Power Dissipation
(Topr=-40〜+85℃,Tj=125℃)
0
100
200
300
400
0 25 50 75 100
Ambient Temperature Ta(℃)
Power Dissipation PD(mW)
MSOP8(VSP8)
MSOP8(TVSP8)
SOT-89-5
NJM2370
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■ TYPICAL CHARACTERISTICS
NJM2370 3V Version Dropout Voltage NJM2370 3V Version Load Regulation
NJM2370 3V Version GND Current
vs. Output Current
NJM2370 3V Version Dropout
Voltage
NJM2370
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■ TYPICAL CHARACTERISTICS
NJM2370 3V Version Output Noise Voltage vs. Noise Bypass Capacitor
NJM2370 3V Version Ripple Rejection vs. Frequency
NJM2370 3V Version Control Current
vs. Control Voltage
NJM2370 3V Version Output Voltage
vs. Control Voltage
NJM2370
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■ TYPICAL CHARACTERISTICS
Dropout Voltage vs. Ambient 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.
NJM2370 3V Version Control Current
vs. Ambient Temperature
NJM2370 3V Version Quiescent Current 1
vs. Ambient Temperature
