NCV612SQ18T1G

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The NCV612SQ18T1G is a high-performance fixed output low-dropoutvoltage regulator (LDO) which is classified as a Linear Voltage Regulator within the Power Management Integrated Circuit (PMIC). It features ultra-low dropout voltage and high power dissipation at high loads.

The key features of the NCV612SQ18T1G include: adjustable output voltage from 2.8V to 5V; 2.4mV maximum dropout voltage at 200mA load; ultra low noise - 14uVrms; fast startup time of 2ms; high temperature operating range (-40 to +125℃). It also has excellent line and load transient regulation, high power supply rejection and built-in EMI filter.

The NCV612SQ18T1G is used in a variety of applications such as: computer storage, automotive applications including HVAC, AV and engine control systems, LEDs and other lighting devices, home entertainment and audio systems, as well as any other device requiring a regulated voltage source. It is used in conjunction with external components to provide system power regulation such as large servers and datacenter applications, power systems and communications applications.

The working principle of the NCV612SQ18T1G is based on the principle of linear regulation. A single reference voltage is applied to the output of the linear regulator and the Load Current is adjusted according to the changes in input voltage and load current. The output reference of the NCV612SQ18T1G is set to 2.8V-5V and is adjustable through two external resistors.

The current flow in the NCV612SQ18T1G is controlled by the main impedance, which is inversely proportional to the difference between the input voltage and the reference voltage. The main impedance is controlled by the gate of the PWDTransistor which is driven by Error Amplifier. If the input voltage is greater than the reference voltage, the Error Amplifier will close the gate and reduce the main impedance, thereby reducing the load current. On the other hand, if the input voltage is lower than the reference, the Error Amplifier will open the gate and increase the main impedance, thereby increasing the load current.

The NCV612SQ18T1G includes many features to improve the performance of the system. It has an adjustable output current limit, over-temperature protection, maximum duty cycle, reverse voltage protection, and more. In addition, it has a built-in EMI filter to reduce conducted and radiated noise, which is critical in automotive and LED applications.

The NCV612SQ18T1G is a high-performance Linear Voltage Regulator from the PMIC family. It offers excellent line and load transient regulation, high power supply rejection, and ultra low noise. It is suitable for use in a wide range of applications including automotive, LED, and home entertainment systems. Its wide operating temperature range, fast startup time, and built-in EMI filter make it an ideal choice for those applications.

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