MCP1825ST-3002E/DB 300mA Low-Dropout Voltage Regulator Technical Overview

The MCP1825ST-3002E/DB is a high-performance, low-dropout (LDO) voltage regulator from Microchip Technology, designed to deliver a stable and clean output voltage for a wide range of applications. As a member of the MCP1825 family, this regulator provides a fixed 3.0V output with a maximum output current of 300mA, making it an ideal power management solution for power-sensitive designs, including battery-powered devices, embedded systems, and portable electronics.

A key feature of this LDO is its extremely low dropout voltage, typically 120mV at 150mA load, which maximizes efficiency and extends battery life by allowing the regulator to maintain regulation even when the input voltage is very close to the output voltage. This is critical for applications where the input source, such as a lithium-ion battery, decreases over time. The device operates with an input voltage range from 2.3V to 6.0V, offering flexibility for various power sources.

The MCP1825ST-3002E/DB is engineered for exceptional output voltage accuracy of ±0.5% under specified conditions, ensuring reliable performance for precision analog and digital loads. Furthermore, it boasts excellent transient response and low noise output, which is vital for noise-sensitive components like RF modules, sensors, and microcontrollers.

Packaged in a space-efficient SOT-223-3 (ST) package, the device features thermal shutdown and current limit protection to safeguard both the regulator and the downstream circuitry under fault conditions. Its low ground current and fast enable control further enhance its suitability for always-on and power-gated applications.

ICGOOODFIND: The MCP1825ST-3002E/DB stands out as a robust, efficient, and highly reliable LDO voltage regulator. Its combination of low dropout voltage, high accuracy, and integrated protection features makes it a superior choice for designers seeking to optimize power integrity and extend operational life in compact electronic systems.

Keywords: Low-Dropout (LDO) Regulator, 300mA Output Current, Low Dropout Voltage, Output Voltage Accuracy, Thermal Shutdown Protection.