MIC2940A-3.3WU

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The MIC2940A-3.3WU-TR is a fixed-output linear regulator from Microchip Technology, delivering a stable 3.3V at up to 1.25A output current. It operates within an input voltage range of 2V to 26V and features a maximum dropout voltage of 0.6V at full load. The device incorporates internal protection mechanisms including overcurrent limiting, thermal shutdown, and reverse polarity protection. Designed for surface-mount applications, it utilizes a TO-263-3 package (D2PAK) and supports an operating temperature range from -40°C to +125°C.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Integrated overcurrent, thermal, and reverse polarity protection circuits
• Fixed 3.3V output with high current capability up to 1.25A
• Low dropout performance ensuring efficient regulation under varying loads

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Portable battery-powered equipment requiring efficient power management
• Linear regulators in cellular telephones and handheld devices
• Laptop and notebook computer power distribution systems
• General-purpose positive voltage regulation in embedded electronics

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific suffix designation when ordering, as variations such as TR indicate tape-and-reel packaging while other suffixes may denote tube or cut-tape formats. Confirm that the requested variant matches the required package type and delivery method for your assembly process. Cross-reference the manufacturer part number with official distributor catalogs to ensure authenticity and availability of the correct revision level before finalizing procurement.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a robust 1.25A LDO with integrated protection is required for space-constrained designs. The TO-263-3 package offers superior thermal dissipation compared to smaller SOT packages, making it suitable for higher current applications. Ensure the input voltage does not exceed the 26V maximum rating and consider the thermal resistance characteristics of the PCB layout to maintain junction temperatures within safe operating limits during continuous operation.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This device belongs to the MIC2940 series of high-current low-dropout regulators manufactured by Microchip Technology. The series is characterized by its ability to deliver significant output current while maintaining tight regulation and offering comprehensive protection features. The MIC2940A variant specifically enhances reliability through improved internal circuitry designed for demanding consumer and industrial electronic applications requiring stable power supply rails.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

MIC2940A-3.3WT

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators FAQ

What protection features are included in the MIC2940A-3.3WU?

The device includes built-in overcurrent limiting, thermal shutdown, and reverse polarity protection to safeguard both the regulator and the connected load.

What is the maximum input voltage for this regulator?

The maximum input voltage rating for the MIC2940A-3.3WU is 26V.