NCP7815TG

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NCP7815TG Application Field and Working Principle

NCP7815TG is a very popular device in the PMIC - Voltage Regulators - Linear arena. It is a standard linear voltage regulator that is used to regulate voltage in electronic circuits. It consists of an external resistive divider network, optionally using a combination of one external resistor and one external capacitor, to sense and feedback the output of the regulator. This regulation process is setup and maintained by the voltage error amplifier that compares the input reference voltage to the set point voltage. The error signal produced is amplified and used to control the pass transistor, thus regulating the output voltage.

The NCP7815TG has many features that make it useful in a variety of applications. The device supports a wide range of input voltages of up to 40 volts, adjustable output voltage range of 1.5 to 30 volts, reverse polarity protection and over-temperature protection. It also has a very low dropout voltage of 500mV at maximum output current. This low dropout voltage prevents the regulator from having to recalibrate its output voltage due to excessive dropout on the pass transistor.

In terms of load efficiency and thermal performance, the NCP7815TG is a highly efficient device with an average load efficiency of 97% and a maximum temperature rise of 150°C over full load. This low temperature rise and high efficiency is due to its low quiescent current of 70uA. This makes the NCP7815TG ideal for low-power applications, such as in telecommunications, industrial and consumer systems.

The NCP7815TG can operate over the temperature range of -40°C to +125°C. It has a wide range of output current capability, up to 200mA, that resolves many of the current range issues typical of other linear voltage regulators. It is a very reliable device, with short circuit protection, reverse polarity protection, and over-temperature protection.

In summary, the NCP7815TG is a very versatile, highly efficient, and reliable linear voltage regulator. The device is suitable for a wide range of applications, from consumer electronics to telecommunications and industrial applications. The device features a wide input voltage range and adjustable output voltage range, as well as low dropout voltage and low quiescent current. It also features over-temperature protection, reverse polarity protection and short circuit protection. This robust device is ideal for low power applications, with high efficiency and low temperature rise.

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