NCP623DM-30R2G

NCP623DM-30R2G is a linear voltage regulator from ON Semiconductor. This product is classified as PMIC (Power Management Integrated Circuit) – Voltage Regulators – Linear. The linear voltage regulator maintains output voltage regulation by comparing the output voltage to an internal reference voltage. This device offers a wide input voltage range of up to 40V and can provide adjustable or fixed output voltage down to 1.5V. It has an average output current of 3A and a maximum of 4A. Additionally, the NCP623 device has overload protection capabilities, adjustable current limiting, and thermal shutdown protection.

The NCP623 device offers an integrated 5V Reference 50mV voltage regulator with a Bias Supplied Output of 5.0V and a 0.1% reference accuracy. It also comes with an optimized choice between fast transient response and low noise. This device is specially designed for direct MOSFETdrive applications such as DC/DC, Buck, Buck-Boost, Pre- and Post-Regulators, and Point-of-Load Converters that require easy access to enable and shutdown functions, along with accurate power control over a wide range of input/output voltage conditions.

The application field for the NCP623DM-30R2G is widespread. It can be used in general purpose linear second regulator, low dropout (LDO) regulator, or power supply applications ranging from 5Vdc to 30Vdc. It is also suitable for electronic circuits, processors and microcontrollers, FPGAs, low dropout regulators, and isolated DC-DC converters. This is because it contains integrated protection protection features such as current limit and thermal shutdown.

The internal working principle of the NCP623DM-30R2G is relatively simple. The linear regulator maintains a constant output voltage by comparing the actual output voltage to the reference voltage. The error amplifier senses the voltage discrepancy between the output and the reference voltage, and then adjusts the control circuit\'s conduction in order to maintain the correct output voltage.

When the input voltage exceeds the desired output voltage, the error amplifier drives the voltage pass transistor which allow the current to flow through the series connected elements, adjusting the output voltage value. When the input voltage drops below the desired output voltage, the voltage pass transistor\'s gate is pulled low, thus stopping the current flow, and adjusting the output voltage value to the required value.

To ensure the best accuracy, the series connected components and feedback network must be accurately matched and stable over a wide range of temperature and load conditions. If the output sags too much, the device is not able to maintain the required voltage level and can lead to an unstable or error system. The NCP623DM-30R2G offers the best solution in terms of performance, accuracy and reliability.