NJM2839 Series

Positive/Negative 2ch Low Dropout Voltage Regulator

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Description

The NJM2839 is a positive/negative 2-channel low dropout voltage regulator featuring a low noise, high precision of ±1.5% (both channels), high ripple rejection ratio of 75dB (positive typ.),65dB (negative typ.), and 100mA output current (both outputs).It also offers useful functions of an ON/OFF control, thermal overload protection and short circuit current limit, and it can use ceramic capacitor of 1µF as an output capacitor. Further taking voltage output sequence into consideration, the NJM2839 provides an soft-start function and output shunt switch in negative voltage channel. It is available in a small surface mount 8-lead MSOP (VSP) package. It is suitable for a power supply circuit for CCD and others.

Spec

	Consumer
Input Voltage Range	-12 V to 18 V (20 V)
Operating Temperature Range	-40°C to 85°C
Standby Current	0.1 (max.) µA
Output Voltage Range	15/-7.5V,13/-7.5V,12/-7.5V,12/-6.3V,12/-6.0V,11.6/-6.0V,12/-6.5V,12/-8.0V,13/-7.0V
Output Voltage Accuracy	Typ. ±1.5 %
Dropout Voltage	Typ. Positive CH : 0.10V (Io1=60mA) Negative CH : 0.13V (Io2=60mA)
Output Current	Io1(max.)=100 mA
Output Noise Voltage	Typ. Vno1 = 45µVrms / Vno2 = 100μVrms
Package	MSOP8(VSP8)
Ceramic Capacitor	Output capacitor with 1.0µF ceramic capacitor.
Note	Internal Thermal Overload Protection Internal Short Circuit Current Limit ON/OFF Control (with output shunt SW)

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TSD	Reverse	Current Limit	ISC	Inrush	Constant Slope	ECO mode	Auto Discharge	External Driver

Functional Description

Quality &
Packages

Product Name	Compatibility	Package	Marking	Reliability
NJM2839R		MSOP8(VSP8)	-	NJM-1-s-fr

Refer to the datasheets for the details on the product.
The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.

TSD	Thermal Shutdown Function
Reverse Current Protection	Reverse Current Protection
Current Limit	Overcurrent Protection
ISC	Short Current Protection
Inrush Current Limit	Inrush Current Protection
Constant Slope	Constant Slope Function
ECO mode	ECO Function
Auto Discharge	Auto Discharge Function
External Driver	External Output Driver Transistor