NCV1117DT18T5

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The NCV1117DT18T5 is a regulator of low dropout voltage, microamps current type suitable for post-voltage regulating. It has a wide adjustable output-voltage that ranges from 1.235 V to 18 V, with a maximum output current of 200 mA. The device contain a design optimized to minimize static current, reducing the power-consumption and they provide stable voltage regulation under different load and temperature-conditions.

In terms of linear regulators, the NCV1117DT18T5 is a three terminal devices that acts as a shunt regulator, which means it will divert current around the load in order to maintain the output voltage at the same level. This regulator contains a MOSFET device as a pass element whose gate voltage is regulated through cyclic on-off operation. As the load current increase, this gate voltage will be stepped up to allow for higher-level gate voltages and current.

The intended application of the NCV1117DT18T5 is in low-noise, organic field effect transistor (OFET) based electronics. It is suitable for powering applications such as ultra-low noise audio amplifiers, signal conditioning circuits, and high-resolution A/D converters. It can also be used for post-voltage regulation, with its tighter output-voltage tolerance and higher precision than leading comparable-products.

The working principle of the NCV1117DT18T5 is based on the fact that the voltage present at the output of the regulator is always slightly less than that at its input. This reduction in voltage is referred to as the “dropout voltage”, and it is kept as low as possible by controlling the gate voltage of the MOSFET device. Since the MOSFET device is able to respond quickly to changes in input and output voltages, the current flow to the load is also kept within the safe operating range for the MOSFET device.

The NCV1117DT18T5 is also equipped with a thermal-shutdown protection feature to ensure that the power-supply does not overheat and create a potential fire hazard. The shutdown-threshold for this feature is typically set at about 160°C. In the event that the junction-temperature of the regulator reaches this level, the thermal-shutdown circuit within the NCV1117DT18T5 will activate an internal circuit breaker to protect the power-supply from any further damage.

In conclusion, the NCV1117DT18T5 offers an effective voltage regulator solution for applications that require premium, low-noise and high-precision operation. Its low dropout voltage, microamps current type design offers higher precision and tighter output-voltage tolerance than the leading competitor’s products. Additionally, it is also equipped with an internal thermal-shutdown protection feature in order to ensure safe operation.

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