NJM79L09UA

PMIC - Voltage Regulators - Linear

NJM79L09UA is a type of 3-terminal adjustable positive voltage regulator that offers very low noise, low temperature coefficient and fast response time.

Application Field

NJM79L09UA is mainly used in a variety of electronic devices, such as television sets, DVD players, VCRs, digital cameras, camcorders and audio equipment. It is also used in automotive applications, mobile phones, home appliances, industrial/automation control, medical/hospital devices and computing/networking devices.

Working Principle

The NJM79L09UA voltage regulator consists of an operational amplifier, transistor, voltage divider and temperature compensation circuit. It works with ICs and has a very low output noise, low temperature coefficient and fast response time. It is designed to regulate the voltage level of the output. When the input voltage is higher than the output voltage, the device turns on and the output voltage starts to rise. When the input voltage is lower than the output voltage, the device turns off and the output voltage starts to drop. The voltage regulation voltage range is from 2.3V to 13.2V.

To ensure a stable output voltage, the NJM79L09UA has an internal temperature compensation circuit that adjusts the output voltage according to the temperature. The temperature coefficient of the device is provided by an external resistor that sets the temperature coefficient according to the ambient temperature. The device operates in the voltage range of 2.3V to 13.2V and the output current is limited to 400mA.

In addition, the NJM79L09UA can be used as a shunt regulator, pass regulator, controlled constant current source, current limiter and series regulator. It is also used in applications such as peak current monitoring, overcurrent protection, voltage limiting and surge protection. The device has a built-in overheat protection circuit which will shut down the device if the temperature of the device rises above the threshold. This ensures the safe operation of the device.

Conclusion

NJM79L09UA is an adjustable positive voltage regulator that offers very low noise, low temperature coefficient and fast response time. It is mainly used in a variety of electronic devices such as television sets, DVD players, VCRs, digital cameras, camcorders, audio equipment and automotive applications. It works with ICs and has a very low output noise, low temperature coefficient and fast response time. It operates in the voltage range of 2.3V to 13.2V and the output current is limited to 400mA. The device also has a built-in overheat protection circuit which will shut down the device if the temperature rises above the threshold.