Microchip MCP1700T-3302E/TT 3.3V 250mA Low Dropout Voltage Regulator SOT-23-3

The Microchip MCP1700T-3302E/TT is a high-performance, CMOS low dropout (LDO) positive voltage regulator designed for efficiency and stability in space-constrained applications. Its primary function is to deliver a steady 3.3V output from an input voltage as low as 2.3V, making it an exceptional choice for extending battery life in portable devices. With an extremely low dropout voltage of just 178mV at the full 250mA output, it maximises usable battery capacity, allowing systems to operate until the battery is nearly depleted.

A standout feature is its remarkably low quiescent current consumption of only 1.6µA. This minimal power draw when regulating is critical for battery-powered electronics, significantly contributing to longer operational life between charges or battery replacements. The regulator also boasts high output voltage accuracy, ensuring sensitive digital components receive a clean and stable power supply for reliable operation.

For robust protection, the device incorporates both over-current and over-temperature safeguards. These internal circuits help prevent damage to the regulator and the downstream components under fault conditions, enhancing overall system reliability. The component is supplied in an embossed tape format, suitable for high-volume, automated surface-mount assembly processes.

Housed in a compact SOT-23-3 package, this regulator offers a pin-compatible upgrade path for older bipolar regulator designs, providing a simple route to improved efficiency and performance without redesigning the circuit board. Its combination of low noise, high accuracy, and protection features makes it a versatile and dependable power management solution.