MCP1824T-2502E/OT 150mA Low-Dropout Linear Regulator Technical Overview

The MCP1824T-2502E/OT is a low-dropout (LDO) linear regulator from Microchip Technology, designed to deliver a fixed output voltage of 2.5V with a maximum output current of 150mA. This device is engineered for applications requiring a stable, clean voltage supply with minimal noise and high power supply rejection, making it ideal for powering sensitive analog and digital circuits.

Housed in a space-saving SOT-23-5 package, this LDO is optimized for portable and battery-powered applications where board space and power efficiency are critical. Its low dropout voltage of typically 120 mV at 100 mA load ensures efficient operation even as the input voltage approaches the output level, extending battery life. Furthermore, the device features a very low quiescent current of 120 µA (typical), which significantly reduces power consumption during light-load or standby modes.

A key advantage of the MCP1824 series is its excellent transient response, which allows it to maintain a stable output voltage during rapid changes in load current. This is critical for modern microcontrollers and wireless modules that operate in multiple power states. The regulator also includes built-in protection features such as overcurrent protection (OCP) and thermal shutdown, safeguarding both the IC and the system it powers under fault conditions.

The MCP1824T-2502E/OT offers a high Power Supply Rejection Ratio (PSRR), typically 70 dB at 1 kHz, which effectively filters out noise from the input supply, resulting in a very clean output. This makes it particularly suitable for noise-sensitive applications like RF systems, audio codecs, and precision sensors.

ICGOOODFIND: The MCP1824T-2502E/OT stands out as a highly efficient and robust LDO solution, offering an optimal blend of low noise, low dropout voltage, and excellent transient performance in a miniature package, making it a top choice for space-constrained and power-sensitive designs.

Keywords: Low-Dropout (LDO), 150mA, 2.5V Output, SOT-23-5, Power Supply Rejection Ratio (PSRR)