Positive/Negative 2Ch Low Dropout Voltage Regulator

Manufacturer's part number :

NJM2839

Manufacturer New Japan Radio

New Japan Radio

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.

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    Features

  • Positive CH
  • 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
  • Negative CH
  • 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
  • Others
  • Bipolar Technology
  • Package Outline (MSOP8(VSP8) MEET JEDEC MO-187-DA)
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Max Input Voltage (V) 20  

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Output Voltage (V) -6 to -7.5/12 to 15  
Typ. Dropout Voltage @ Max. lout (mV) 130  
Typ. Output Voltage Accuracy (%) ± 1.5  
Output Current (mA) 100  
Operating Temperature (°C) -40 to 85  
Package MSOP-8 (VSP-8)