LP3876ES-2.5

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LP3876ES-2.5 is a linear voltage regulator, which belongs to the PMIC (Power Management IC) voltage regulators family. It is a low dropout (LDO) voltage regulator, having a fixed output voltage of 2.5V. The controlled output current is up to 250mA and it can provide a low output voltage ripple under all operating conditions. It is a highly efficient regulator with a very low dropout voltage and quiescent current.

The main features of the LP3876ES-2.5 include high efficiency, fast transient response, soft start operation, low quiescent current consumption, high current capability, and thermal shutdown protection. It also features a low dropout voltage and a very low output voltage ripple.

The LP3876ES-2.5 is designed for multiple applications, such as powering microprocessors, DSPs and ASICs, providing high current and fast transient response with minimal excess power dissipation. It is also suitable for powering connected applications from a low input voltage such as batterycased products, portable computer peripherals, telephone line powered accessories, and other battery powered equipment.

The LP3876ES-2.5 voltage regulator also features an enable pin, which can be used to enable/disable the regulator. It also allows user-selectable current limit and min/max ripple filter time constants. It has built-in reverse battery protection, a low voltage reset protection and an overtemperature shut down that helps protect the voltage regulator from overloads.

The working principle of the LP3876ES-2.5 voltage regulator can be explained as follows - the IC senses the input voltage and the output voltage and compares them. The voltage at the output is controlled through the regulation loop. This regulation loop controls the current flow in the control circuitry, which in turn controls the current flow in the voltage regulator, thus controlling the output voltage. The output current is determined by the voltage drop across the resistor. The resistance of the resistor is determined by the current limiting feature of the IC.

The LP3876ES-2.5 is a versatile voltage regulator and is suitable for a wide range of applications due to its low dropout voltage, high current capability and fast transient response. It is an ideal choice for battery powered and portable electronics applications, as it consumes very little power, is highly efficient and provides a regulated output voltage for all low input voltage sources.

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