MIC29201-12WU-TR

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

The MIC29201-12WU-TR is a fixed-output linear regulator from the MIC2920A family, manufactured by Microchip Technology. It provides a stable 12V output with a maximum current of 400mA in a TO-263-5 surface-mount package. The device features low dropout voltage and low quiescent current to extend battery life. It includes logic-controlled shutdown functionality and an error flag output for monitoring regulation status. The component operates within a junction temperature range of -40°C to +125°C.

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

• Integrated error flag comparator that signals when output voltage drops out of regulation
• Logic-compatible electronic shutdown input for system power management
• Robust protection against reverse battery connections and high-voltage positive transients
• Fold-back current limiting and thermal shutdown to prevent damage under fault conditions

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

• Automotive electronics requiring load dump protection
• Battery-powered equipment needing extended operational life
• Cellular telephones and portable communication devices
• Laptop and notebook computer power regulation
• SMPS post-regulators and voltage reference circuits

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

Verify the specific suffix 'WU' corresponds to the TO-263-5 package and 'TR' indicates tape-and-reel packaging. Confirm RoHS compliance status as the datasheet notes exemptions may apply. Ensure the manufacturer designation aligns with current Microchip Technology ownership following Micrel acquisition. Check for any recent product change notices regarding pinout or electrical characteristics before finalizing procurement.

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

Select this part when a fixed 12V output is required with moderate current demands up to 400mA. The MIC29201 variant is preferred over the MIC2920A for its additional shutdown control and error flag capabilities. Consider the TO-263-5 package for efficient thermal dissipation in space-constrained surface-mount designs. Evaluate the dropout voltage requirements against the minimum input voltage available in the application circuit.

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

This component belongs to the MIC2920A family of 400mA low-dropout regulators. The family includes fixed voltage versions (MIC2920A), adjustable versions with shutdown (MIC29202), and versions with both shutdown and error flags (MIC29201, MIC29204). The MIC29201-12WU-TR specifically denotes the 12V fixed output version in the TO-263-5 package supplied in a reel format.

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

Direct substitutes include other MIC29201 variants with different output voltages such as MIC29201-5.0BU or MIC29201-3.3BU if voltage adjustment is possible. For adjustable alternatives, the MIC29202 series offers similar protection features but requires external programming resistors.