MIC5216BMM

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

The MIC5216BMM is a fixed-output positive linear voltage regulator manufactured by Microchip Technology, housed in an 8-MSOP package. It provides a nominal output voltage of 3.3V with a maximum continuous output current of 150mA and a peak capability of 500mA. The device operates within an input voltage range of 2.5V to 12V and maintains a maximum dropout voltage of 500mV at full load. Key electrical parameters include a quiescent current of 3µA, power supply rejection ratio of 75dB at 120Hz, and an operating temperature range from -40°C to +125°C.

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

• Integrated error flag output that indicates undervoltage faults
• CMOS or TTL-compatible enable and shutdown control
• Built-in reversed-battery protection and thermal limiting
• Low-noise performance with tight line and load regulation

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

• Laptop, notebook, and palmtop computers
• Cellular telephones and battery-powered equipment
• PC Card VCC and VPP regulation and switching
• SMPS post-regulator and DC-to-DC modules

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

Verify the exact suffix for the specific fixed voltage variant required, as the base part number covers multiple outputs. Confirm RoHS compliance status, as older manufacturing runs may not meet current environmental standards. Check for end-of-life status and ensure adequate lead times for alternative sourcing if necessary.

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

Select this component for applications requiring high peak current during startup while maintaining a low profile. Ensure the PCB layout supports the thermal requirements for the desired continuous current. Verify that the output capacitor meets the ESR specifications to prevent oscillation and maintain stability under varying load conditions.

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

This device belongs to the MIC5216 family of 500mA-peak LDO regulators designed for space-constrained portable electronics. It offers superior transient response and noise performance compared to standard regulators. The MM8 package allows for efficient heat dissipation relative to its small footprint, making it suitable for dense circuit board designs.

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

MIC5239YMM is listed as a similar replacement option.