GENERAL 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.

FEATURES

High Ripple Rejection 75dB typ. (f=1kHz,Vo1=3V Version)

Low Output Noise Voltage VNO1=45μVrms typ.

Output capacitor with 1.0μF ceramic capacitor. (Vo1≥5.5V)

Output Current Io1(max.)=100mA

High Precision Output Vo1±1.5

Low Drop Out Voltage 0.10V typ. (Io1=60mA)

ON/OFF Control

Internal Thermal Overload Protection

Internal Short Circuit Current Limit

High Ripple Rejection 65dB typ. (f=1kHz,Vo2=-7V Version)

Low Output Noise Voltage VNO2=100μVrms typ

Output capacitor with 1.0μF ceramic capacitor.

Output Current Io2(max.)=100mA

High Precision Output Vo2±1.5

Low Drop Out Voltage 0.13V typ. (Io2=60mA)

ON/OFF Control (with output shunt SW)

Soft-start Function

Internal Thermal Overload Protection

Internal Short Circuit Current Limit

Bipolar Technology

Package Outline MSOP8 (VSP8)**MEET JEDEC MO-187-DA