MIC29501-3.3WU

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

The MIC29501-3.3WU is a high-current low-dropout (LDO) linear voltage regulator manufactured by Microchip Technology, belonging to the MIC2950 series. It provides a fixed output voltage of 3.3 V with a maximum output current capability of 5 A. The device supports an input voltage range up to 26 V and operates within a junction temperature range of -40°C to +125°C. Key electrical characteristics include a typical dropout voltage of 370 mV at full load and a maximum of 600 mV. It features line regulation of 0.06% and load regulation of 0.2%. The component is housed in a TO-263-5 (D2PAK-5) surface-mount package.

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

• Integrated logic-level ON/OFF control pin for system power management
• Error flag signal output indicating output deviation conditions such as overcurrent or thermal shutdown
• Comprehensive protection mechanisms including overcurrent limiting, thermal shutdown, and reverse polarity protection

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

• Battery-powered equipment requiring stable high-current supply
• Automotive electronic systems
• Industrial power management modules
• Post-regulation stage for switching power supplies

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

Verify the specific suffix 'WU' corresponds to the TO-263-5 D2PAK-5 surface mount package configuration. Confirm that the fixed 3.3 V output variant matches the application requirements, distinguishing it from adjustable versions like the MIC29503. Ensure compliance with RoHS standards and check for moisture sensitivity level classifications during storage and handling procedures.

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

Select this component when a fixed 3.3 V rail is required with up to 5 A continuous current capacity. It is suitable for designs needing integrated enable control and fault indication via the error flag. Consider the thermal performance of the TO-263-5 package relative to the expected power dissipation under load. Compare against other series members if different output voltages or current ratings are needed.

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

This part belongs to the MIC2950x family of high-current LDO regulators from Microchip Technology. The series includes variants with different current capabilities, such as the 1.5 A MIC2915x, 3 A MIC2930x, and 7.5 A MIC2975x. The MIC29501 specifically denotes the 5 A fixed-output version with five pins, offering enhanced control features compared to simpler three-pin regulators.

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

MIC29501-5.0WU: Same package and current rating but fixed at 5.0 V output; verify voltage compatibility. MIC29503WU: Adjustable output version in the same TO-263-5 package; requires external resistors for setting voltage. MIC29502WU: Adjustable output with shutdown feature; confirm if the fixed 3.3 V requirement can be met with external components.