LP3982IMM-2.77/NOPB

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PMIC (Power Management Integrated Circuit) refers to a single chip that integrates multiple functions of power management on a single chip. Voltage regulators are one of its most important functions, and linear voltage regulators are still widely used due to the simple structure and easy implementation. LP3982IMM-2.77/NOPB is a kind of linear voltage regulator with integrated functions.

LP3982IMM-2.77/NOPB is a low dropout voltage regulator with adjustable output voltage, which can convert input voltage (dropout voltage 1.7V) into a fixed output voltage ranging from 0.9V to 5V. It is designed in the standard 10-pin SON package with a maximum supply current of 0.2A, making it suitable for use in high density and low power applications. It has built-in protection circuits, such as current limit protection, thermal shutdown protection and overvoltage protection.

The typical application of LP3982IMM-2.77/NOPB is as a regulated voltage source (DC/DC converter) to provide power for RF PA modules, CMOS image sensors, LCD backlighting, and other applications requiring low voltage, low dropout, high efficiency and low noise. In addition, when used in a combination, the typical application of LP3982IMM-2.77/NOPB can also support multiple power supplies, such as inverting supplies, low leakage, LDO supplies and battery-powered supplies.

LP 3988IMM-2.77/NOPB works with the same operation principle as traditional linear voltage regulator. The regulated voltage is directly obtained by controlling the base of the output PNP transistor by the internal feedback error amplifier, and the pass element is usually a PMOS transistor. When the load current increases, the PNP transistor is turned on more, the voltage drop of the PMOS transistor is reduced, and the voltage at the output terminal is kept at a predetermined value. The power generated in the PMOS is dissipated in the output pass transistor, which is then delivered as heat.

LP3982IMM-2.77/NOPB is a very effective linear voltage regulator to maintain a stable output voltage for low power and high density applications. It supports a wide range of input voltage and has a low quiescent current, which makes it very suitable for multiple power supply combination applications. Its built-in protection circuits, such as current limit protection, thermal shutdown protection and overvoltage protection, make it more secure and reliable.

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