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NJM2387

New Japan Radio
Part Number NJM2387
Manufacturer New Japan Radio
Description (NJM2387 / NJM2389) ADJUSTABLE LOW DROPOUT VOLTAGE REGULATOR
Published Sep 24, 2005
Detailed Description NJM2387/89 ADJUSTABLE LOW DROPOUT VOLTAGE REGULATOR GENERAL DESCRIPTION The NJM2387/89 are adjustable low dropout volta...
Datasheet PDF File NJM2387 PDF File

NJM2387
NJM2387

Overview
NJM2387/89 ADJUSTABLE LOW DROPOUT VOLTAGE REGULATOR GENERAL DESCRIPTION The NJM2387/89 are adjustable low dropout voltage regulators .
The output current is up to 1.
0A and dropout voltage is 0.
2V typ.
at Io=0.
5A.
NJM2387 has ON/OFF control circuit and enable to reduce quiescent current.
The NJM2387/89 is suitable for power module, TV, Display, car stereo and low power applications.
PACKAGE OUTLINE NJM2387DL2 NJM2387DL3 NJM2389F FEATURE Low Dropout Voltage ∆VI-O=0.
2V typ.
at Io=0.
5A Output Current Io(max.
)=1.
0A Reference Voltage Vref=1.
26V ± 2% ON/OFF Control (Active High : Only NJM2387) Internal Short Circuit Current Limit Internal Thermal Overload Protection Bipolar Technology Package Outline TO-252-5(NJM2387), TO-220F-4(NJM2389) PIN CONFIGURATION 3 3 123 45 123 45 PIN FUNCTION 1.
VIN 2.
ON/OFF CONTROL 3.
VOUT 4.
VADJ 5.
GND PIN FUNCTION 1.
VIN 2.
VOUT 3.
GND 4.
VADJ 123 4 NJM2387DL2 EQUIVALENT CIRCUIT VIN NJM2387DL3 NJM2389F VOUT VIN VOUT Bandgap Reference Bandgap Reference Control ON/OFF control Over Voltage Protection Thermal Over Current Protection Protection VADJ Over Voltage Protection Thermal Over Current Protection Protection VADJ GND GND NJM2387DL2/DL3 NJM2389F Ver.
2004-12-22 -1- NJM2387/89 (Ta=25°C) SYMBOL RATINGS UNIT VIN +35 V VCONT +35(*1) V VADJ +6 V Io 1.
0 A NJM2387 10(Tc≤25°C) / 1(Ta≤25°C) W Power Dissipation PD NJM2389 18(Tc<50°C) Operating Junction Temperature Range Tj -40 ∼ +150 °C Operating Temperature Range Topr -40 ∼ +85 °C Storage Temperature Range Tstg -50 ∼ +150 °C (*1): This applies for NJM2387.
When input voltage is less than +35V, the absolute maximum control voltage is equal to the input voltage.
ABSOLUTE MAXIMUM RATINGS PARAMETER Input Voltage Control Voltage Adjust Terminal Voltage Output Current NJM2387 ELECTRICAL CHARACTERISTICS (VIN=15V, VO=10V, Io=0.
5A, R1=1kΩ, CIN=0.
33µF, Co=22µF, Ta=25°C) Measurement is to be conducted is pulse testing.
PARAMETER SYMBOL CONDITIONS MIN.
TYP.
MAX.
UNIT Input Voltage VIN 3.
8 ...


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