NCP500SN30T1G

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NCP500SN30T1G is an integrated linear voltage regulator ideal for energy-sensitive equipment requiring excellent power supply rejection (PSRR) to reduce noise. This device operates over a wide input voltage range and is designed to withstand a high level of power surges and transient voltage.

NCP500SN30T1G Application Fields

NCP500SN30T1G is designed to provide a regulated output voltage of 5.0V, which is a suitable supply voltage for many types of low power system peripherals and sensors. It is widely used in consumer electronics, computer systems, automotive, industrial, medical and other related applications. The device is especially suitable for applications where a low voltage output is required, such as handheld devices, mobile phones, digital cameras and other portable equipment.

The main features of NCP500SN30T1G are low quiescent current, low dropout voltage, high current output, fast transient response, and good PSRR performance. The device also supports short-circuit protection, over temperature and over current protection which make it suitable for providing safe power in challenging operating environments.

Working Principle of NCP500SN30T1G

The NCP500SN30T1G is an integrated low dropout linear voltage regulator, consisting of an NMOS pass device connected to a Darlington emitter follower. The integrated circuit operates in on/off mode depending on the current passing through the pass device. When the regulator is enabled (on), it turns on the pass device to deliver the load current. When the regulator is in standby state (off), the pass device is disabled, thus not allowing any current passing through the regulator.

When the input voltage is above the system’s operating voltage, a suitable voltage is dropped across the pass device, while the voltage drop across the Darlington emitter follower is kept constant, thus ensuring that the output voltage is regulated at 5.0V. The output voltage will remain at 5.0V until the input voltage falls below the system’s operating voltage, at which point the regulator will switch off.

The NCP500SN30T1G also features a power-on reset circuit that ensures all the circuits reset to a known state when the device is powered. The reset circuit also ensures that the temperature, current and voltage protections are activated at all times.

Conclusion

NCP500SN30T1G is a reliable linear voltage regulator designed to provide a regulated output voltage of 5.0V in a wide range of applications. It features low quiescent current consumption, fast transient response, and good PSRR performance. The device also offers short-circuit, over temperature and over current protections, making it suitable for providing safe power even in challenging operating environments.

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