MCP1824T-3302E/OT

Product Overview

The MCP1824T-3302E/OT from Microchip Technology is a single-output, positive fixed linear voltage regulator for surface-mount power regulation. It provides a fixed 3.3V output at up to 300mA, accepts input voltages up to 6V, and has a maximum dropout voltage of 0.32V at 300mA. The device includes enable and power-good control features, along with over-temperature, short-circuit, and under-voltage lockout protection. It operates over a temperature range of -40°C to 125°C and is packaged in a SOT-23-5 surface-mount package (SC-74A/SOT-753).

Key Features

• Fixed positive 3.3V output from a single regulator channel.
• Output current rating of 300mA.
• Maximum input voltage of 6V.
• Maximum dropout voltage of 0.32V at 300mA.
• Quiescent current of 220 µA.
• PSRR of 55dB at 100Hz.
• Enable and power-good control features.
• Protection includes over-temperature, short-circuit, and under-voltage lockout.
• Operating temperature range from -40°C to 125°C.
• Surface-mount SOT-23-5 package (SC-74A/SOT-753).

Applications

• Fixed 3.3V regulation for low-current circuits within a single-rail subsystem.
• Enable-controlled power sequencing where a 3.3V output can be turned on or off under system control.
• Power-good monitored supply rails in compact surface-mount designs that require status feedback for a 300mA regulator.
• Input-to-output voltage regulation from supplies up to 6V where a 0.32V maximum dropout at 300mA is relevant.

Design & Procurement Notes

When selecting this regulator, confirm that the input voltage remains within the 6V maximum and that the load current does not exceed 300mA, since the maximum dropout voltage is 0.32V at 300mA. The fixed 3.3V output and single regulator channel simplify rail design where adjustable output or multiple outputs are not required. Enable and power-good features can be used for controlled startup or status monitoring, while over-temperature, short-circuit, and under-voltage lockout protections support fault conditions. Board layout should account for the SOT-23-5 surface-mount package and the -40°C to 125°C operating temperature range. Footprint compatibility should be checked against the SC-74A/SOT-753 package designation. The 220 µA quiescent current and PSRR of 55dB at 100Hz may be relevant when comparing supply noise sensitivity and idle power draw.