NCP585DSAN18T1G

NCP585DSAN18T1G Application Field and Working Principle

A voltage regulator, also called a linear regulator, is a integrated circuit (IC) used for providing a relatively constant output voltage for a circuit. The NCP585DSAN18T1G is a voltage regulator with a wide range of applications. The device has many features that make it popular among power users. In this article, we will discuss the application field and working principle of NCP585DSAN18T1G.

Application Field

The NCP585DSAN18T1G is a low-power, low-dropout (LDO) linear voltage regulator designed to provide a regulated output voltage that stays within the range of +/- 0.2V of the specified set point. The device is a monolithic IC containing control, compensation, and output circuitry. The NCP585DSAN18T1G is ideal for battery-powered applications as it has low quiescent current and is operating with supply voltages up to 18V. It is suitable for use in portable electronics and automotive applications. The device is offered in a small SOT-23-6 and an TSOT-23-5 package.

The NCP585DSAN18T1G is designed to offer superior EMI performance and also meets the stringent requirements of automotive applications. It has low-noise, wide bandwidth, and low switching activity. The device is equipped with a low-ripple, low-noise reference voltage source that operates in both buck and boost conversion. The device is available in the standard and low-power versions, so it can be tailored to meet specific needs.

Working Principle

The NCP585DSAN18T1G operates as a linear regulator. That means that is uses a linear control element, such as a PNP or NPN transistor, to maintain a regulated output voltage by comparing the input voltage and the output voltage. The NCP585DSAN18T1G works by sensing the input and output voltages, and adjusting the current flow to the output to maintain the set voltage. The regulator has internal current-limiting circuitry so that it can handle transient over current events without shutting down.

The NCP585DSAN18T1G also uses feedback loop compensation, which is a method of maintaining the output voltage over a range of changing input voltages. The feedback loop adjusts the output voltage by changing the transistors\' operating characteristics to maintain a constant output voltage. The required output voltage is set by the output resistor divider network.

In summary, the NCP585DSAN18T1G is a low-power, low-dropout linear voltage regulator. It is ideal for battery-powered applications, with supply voltages up to 18V and low quiescent current. The device offers superior EMI performance and meets the stringent requirements of automotive applications. The NCP585DSAN18T1G works by comparing the input and output voltages and adjusting the current flow to the output to maintain the set voltage, and it uses feedback loop compensation to maintain the output voltage over a range of changing input voltages.