NCV8170BXV360T2G

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Linear voltage regulators are a basic type of voltage regulator and an important type of power management integrated circuit (PMIC). NCV8170BXV360T2G is a low dropout (LDO) linear voltage regulator produced by On Semiconductor. Its application field and working principle will be discussed in this article.

Application Field

The NCV8170BXV360T2G parts help design engineers create and maintain low power consumption of the products, without sacrificing system-level performance and reliability. It is designed for a wide variety of power supply applications, such as computer chips and embedded systems, peripheral ICs, input/output transducers, speech processors, cellular phones and low-voltage LCDs. It is also suited for automotive, medical and industrial systems.

Some application examples are:

• It provides power supply control for computer and embedded systems, peripheral ICs and input/output transducers.
• It provides 1.6V/0.9A to 3.3V/2A voltage regulation for mobile phones.
• It is used in automotive systems where it powers down & up and short-circuit protection is important.
• It provides 1.8V voltage regulation for low-voltage LCDs.
• It is used in medical systems including portable medical equipment and implantable devices.

Working Principle

The NCV8170BXV360T2G is a low dropout (LDO) linear regulator, which means it takes input voltage from a power source and output a regulated voltage. The regulating action is done through a linear closed-loop feedback system, which uses a negative feedback loop. This allows the regulator to compare the output voltage to an internally reference voltage and adjust itself accordingly. This is done by controlling the output current through an internal pass transistor; when the output current increases, the voltage at the output decreases and vice versa.

The NCV8170BXV360T2G has two pins, an input pin and an output pin. The input pin accepts the supply voltage which is then converted into a regulated output voltage by the internal pass transistor. The output pin is used to provide the regulated output voltage.

The NCV8170BXV360T2G supports a wide range of input voltages from 2.2 to 18 V and output voltages from 0.8 to 6 V, thus allowing it to be used in many different applications. Furthermore, the device features low quiescent current of 3 μA, high operating temperature range from -40 °C to 125 °C, and short-circuit protection.

In conclusion, the NCV8170BXV360T2G is an effective linear voltage regulator for a wide range of applications due to its wide operating range, low quiescent current and short-circuit protection. Its application range includes computer chips and embedded systems, peripheral ICs, input/output transducers, speech processors, automotive systems, medical systems, mobile phones and low-voltage LCDs. It is certainly an ideal choice for power system design engineers.

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