MCP1804T-3302I/OT: A 150mA CMOS Low-Dropout (LDO) Voltage Regulator from Microchip

In the realm of power management, efficiency and stability are paramount. The MCP1804T-3302I/OT from Microchip Technology stands out as a robust solution for applications requiring a reliable voltage source. This CMOS low-dropout (LDO) voltage regulator is designed to deliver up to 150mA of continuous output current while maintaining exceptional performance across a wide range of operating conditions.

One of the key features of the MCP1804T-3302I/OT is its low dropout voltage, which is typically 178 mV at 100 mA loads. This allows the regulator to maintain regulation even when the input voltage is very close to the output voltage, making it ideal for battery-powered devices where maximizing runtime is critical. The device offers a fixed output voltage of 3.3V, providing a stable supply for microcontrollers, sensors, and other digital logic components.

The MCP1804 series is built using a CMOS process, which results in very low quiescent current—typically just 56 µA during operation. This minimal ground current enhances efficiency, especially in always-on applications. Furthermore, the device includes vital protection features such as current limit and thermal shutdown, safeguarding both the regulator and the downstream circuitry from fault conditions.

Housed in a space-saving SOT-23-5 package, the MCP1804T-3302I/OT is suited for compact PCB designs. Its wide input voltage range from 2.7V to 6.0V makes it versatile for use in 3.3V or 5V systems powered by lithium-ion batteries, USB, or other common sources. With low noise output and excellent line and load regulation, this LDO ensures a clean and stable voltage supply, which is crucial for noise-sensitive analog and RF circuits.

ICGOOFind: The MCP1804T-3302I/OT is an excellent choice for designers seeking a high-performance, low-quiescent-current LDO regulator in a minimal footprint, perfect for portable and battery-operated electronics.

Keywords: Low-Dropout (LDO) Regulator, Low Quiescent Current, 150mA Output Current, Thermal Shutdown, Fixed 3.3V Output.