MIC5216-3.3YMM

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

The MIC5216-3.3YMM is a fixed-output low-dropout linear voltage regulator manufactured by Microchip Technology, providing a stable 3.3V output with a guaranteed peak current capability of 500mA. It operates within an input voltage range of 2.5V to 12V and maintains excellent line regulation of 0.05% per volt and load regulation of 0.5%. The device features a maximum dropout voltage of 500mV at full load and includes an internal undervoltage monitor accessible via an open-collector error flag pin. Designed for space-constrained applications, it utilizes an 8-pin MSOP package and supports operation across a temperature range from -40°C to +125°C.

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

• Integrated error flag output provides active-low indication of undervoltage conditions
• Capable of delivering high peak output currents suitable for demanding startup inrush requirements
• Features reversed-battery protection alongside current limiting and overtemperature shutdown mechanisms
• Supports CMOS or TTL-compatible enable and shutdown control signals

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 specific ordering suffix against official documentation to confirm the exact package type and marking scheme. Ensure that the selected variant matches the required thermal performance and lead configuration for your PCB layout. Cross-reference the manufacturer part number with authorized distributors to confirm component authenticity and traceability before finalizing procurement orders.

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

Select this component when applications require high peak current delivery during startup phases while maintaining a compact footprint. Evaluate the thermal resistance characteristics of your PCB layout to ensure continuous current capabilities meet system demands without exceeding junction temperature limits. Consider the inclusion of the error flag feature if monitoring output stability is critical for system reliability.

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

This device belongs to the MIC5216 series of low-noise LDO regulators designed for portable electronics. It succeeds earlier Micrel designs by offering improved peak current handling and integrated fault detection. The MM8 package variant provides a robust solution for power management in mobile devices where size constraints are significant but transient current loads remain high.

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

MIC5216-3.3BMM

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

How does the error flag function?

The error flag is an open-collector output that goes active low when the output voltage drops approximately 5% below its nominal value.

What is the minimum output capacitance required?

A minimum of 1µF is recommended between the output and ground to prevent oscillation, though smaller values may suffice at very low currents.