MIC5233-3.0BM5-TR

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

The MIC5233-3.0BM5-TR is a fixed-output linear low-dropout regulator providing a nominal 3.0V output with a maximum continuous current of 100 mA. It operates within an input voltage range of 2.3V to 36V and features ultra-low ground current, typically 18 µA at full load. The device incorporates an enable pin for shutdown control, achieving near-zero quiescent current in the off state. It includes comprehensive protection mechanisms such as thermal shutdown, current limiting, reverse battery protection, and reverse leakage protection. The component is housed in a 5-lead SOT-23 package.

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

• High input voltage capability up to 36V combined with ultra-low ground current suitable for multi-cell Li-Ion systems
• Stable operation with ceramic or tantalum capacitors requiring only 2.2 µF output capacitance
• Integrated enable input allowing zero shutdown current consumption
• Built-in reverse battery and reverse leakage protection for robust system performance

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

• Keep-alive supply in notebook and portable computers
• USB power supply circuits
• Logic supply for high-voltage batteries
• Automotive electronics
• Battery-powered systems

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

Verify that the specific suffix BM5 corresponds to the required automotive qualification status, as datasheet documentation indicates AEC-Q100 qualification is available for the 5-lead SOT23 package variant. Confirm the ordering suffix aligns with the intended junction temperature range and packaging configuration before finalizing procurement specifications.

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

Select this regulator when designing circuits requiring high input voltage tolerance alongside minimal standby power consumption. Ensure the application utilizes ceramic or tantalum output capacitors with ESR below 3Ω to maintain stability. Verify that the thermal resistance of the chosen PCB footprint accommodates the expected power dissipation under maximum load conditions.

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

This component belongs to the MIC5233 family of highly accurate, low dropout regulators manufactured by Microchip Technology. The series offers both fixed and adjustable output voltage versions in 5-lead SOT23 and 3-lead SOT223 packages. The family is designed for applications demanding wide input voltage ranges and efficient power management in portable and automotive environments.

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

MIC5233-3.0YM5-TR

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

Is the MIC5233 stable without a load?

Yes, the MIC5233 remains stable and in regulation with no load, which is particularly beneficial for CMOS RAM keep-alive applications.

What type of output capacitors are recommended?

The design is optimized for low-ESR ceramic chip capacitors, specifically X7R or X5R dielectric types, though it is also stable with tantalum capacitors.