October 31,2008 - We, New Japan Radio Co., Ltd., have developed a low output voltage series regulator of NJM2847 for control microcomputers of digital applications such as a handsets / a DSC / a DVC required a low output voltage operation.
Lately, an operating voltage for control microcomputers of digital applications such as a handset / a DSC / a DVC is decreasing and with technical advantages and high efficiency, high precision and further efficiency in a power supply is required. The NJM2847 is a low output voltage series regulator developed by the requirement.
The NJM2847 is consisted of a band gap reference, an error lamp, an output device, an over current protection circuit, a thermal shut down circuit and an on/off control circuit and by improvement and optimization of circuits structure of previous products, in spite of the output voltage range from 0.8V to 1.4V, it is realized ±1.0% of high precision output, 85dB(f=1kHz @Vo=0.8V) of high ripple rejection and 20µVrms(typ.) of low noise.
A Load regulation*, which is the most important specification in regulators, of the NJM2847 is 0.002%/mA and it is very excellent Load regulation* and load transient response. Minimization is possible by acceptance of 2.2µF ceramic capacitors.
In spite of low output voltage, the NJM2847 is having ±1.0% of excellent precision output and 85dB of high ripple rejection and load transient response and Load regulation* was improved, as a result, stable power supply will be provided.The NJM2847 features
|Function||Low Output Voltage Series Regulator|
|Applications||Handsets ,Portable equipments such as DSC(digital still camera),DVC(digital video camera)|