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Details, datasheet, quote on part number:NJM2370x15
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Datasheet text preview:
NJM2370
LOW DROPOUT VOLTAGE REGULATOR WITH ON/OFF CONTROL
s GENERAL DESCRIPTION s 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 NJM2370U 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. s 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 q Package Outline SOT-89(5pin), VSP8 s PIN CONFIGURATION
5 4
NJM2370R
1. 2. 3. 4. 5.
1 2 3
PIN FUNCTION CONTROL GND NOISE BYPASS VOUT VIN
1 2 3 4
8 7 6 5
NJM2370U s EQUIVALENT CIRCUIT
NJM2370R
PIN FUNCTION 1. CONTROL 2. GND 3. NC 4. NOISE BYPASS 5. VOUT 6. NC 7. NC 8. VIN
VIN CONT
Thermal Protection
VOUT
NOISE BYPASS
Bandgap Reference
GND
- 1/1 NJM2370_databook00_01
NJM2370
s ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL Input Voltage VIN Control Voltage VC O N T (Ta=25°C) RATINGS UNIT 20 V 20(note 1) V (SOT-89) 350 Power Dissipation PD mW (VSP8) 320 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. s ELECTRICAL CHARACTERISTICS PARAMETER SYMBOL Output Voltage Vo Quiescent Current 1 IQ1 Quiescent Current 2 IQ2 Output Current Io Line Regulation Vo/VIN (Ta=25°C) MAX. UNIT +3% V µA - 100 nA mA - 0.12 %/V 0.12 0.03 0.3 - - %/V %/mA V dB mV/°C
Load Regulation Dropout Voltage Ripple Rejection Average Temperature Coefficient of Output Voltage Output Noise Voltage
Vo/Io VI-O R·R Vo/Ta V NO
CONDITIONS VIN=Vo+1V, Io=30mA Io=0mA,expect ICONT CONTROL-GND short (Vo-0.3V) VIN=(Vo+1V) (Vo+6V) Vo=2V to 14V VIN=(Vo+1V) (Vo+5V) Vo=15V Io=0 60mA Io=30mA f=400Hz, ein=100mVp-p VIN=Vo+1.5V, Io=10mA Ta=-20 75°C, Io=10mA VIN=Vo+1.5V 10Hz< f < 80kHz, Io=10mA, Vo=3V
MIN. -3% - - 150 - - - - - -
TYP. - 180 - 180 - - - 0.1 60 0. 2
30 µVrms - - (note 2)Please confirm the specification separately because some parameters depend on output voltage. s TEST CIRCUIT
A
V IN
II N +
0.1µF
VIN
VOUT +
2370
IOUT
V VOUT
10µF
A V VCONT
ICONT
CONTROL
NOISE BYPASS
GND
Cp
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NJM2370
s TYPICAL APPLICATION x In Nonuse of ON/OFF Control
VI N +
0.1µF
VI N
VOUT +
VOUT
2370
10µF
R (0300k) CONTROL
NOISE BYPASS
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.
y In Use of ON/OFF CONTROL
VI N +
0.1µF R CONTROL NOISE BYPASS
VI N
VOUT +
VOUT
2370
10µF
GND
Cp=0.1µF
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.
- 3/3 NJM2370_databook00_01
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