MIC5239-5.0YM

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

The MIC5239-5.0YM is a fixed-output low dropout linear regulator manufactured by Microchip Technology, designed for high-voltage input applications. It provides a stable 5V output with a maximum continuous current capability of 500mA. The device operates within an input voltage range of 2.3V to 30V and features a typical dropout voltage of 350mV at full load. Quiescent current is specified at 23µA, supporting energy-efficient operation in battery-powered systems. The component includes integrated protection mechanisms such as thermal shutdown, current limiting, and reverse-polarity protection. It is housed in an SOIC-8 surface-mount package and supports an operating temperature range from -40°C to +125°C.

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

• High input voltage tolerance up to 30V suitable for battery-supplied systems
• Low quiescent current consumption for extended battery life
• Integrated thermal shutdown and current limit protection
• Reverse-battery and reverse-leakage protection capabilities

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

• Keep-alive power supply for high-voltage battery systems
• USB power distribution circuits
• Portable electronic devices requiring efficient voltage regulation
• Industrial control systems with wide input voltage ranges

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

Verify the specific suffix 'YM' against official Microchip documentation to confirm the exact package type (SOIC-8) and tape/reel or tube packaging configuration. Ensure compatibility with moisture sensitivity level requirements during assembly. Cross-reference the part number with the latest datasheet revision to confirm pinout and electrical characteristics match the design intent.

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

Select this component when a fixed 5V output is required from inputs up to 30V with moderate current demands. Consider the SOIC-8 package for PCB space constraints compared to larger packages. Evaluate the 350mV dropout voltage against the minimum input voltage headroom required by the application. Verify that the 500mA output current meets the peak load requirements of the downstream circuitry.

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

The MIC5239 series belongs to Microchip's portfolio of low quiescent current LDO regulators. This family is characterized by high input voltage capability and robust protection features. The MIC5239-5.0YM represents the fixed 5V variant in the SOIC-8 package, distinct from adjustable versions or other package options like MSOP or SOT-223 available within the same functional family.

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

Check for direct substitutes within the MIC5239 family with different output voltages or packages if availability is constrained. Verify pin-to-pin compatibility before substituting with other LDO regulators offering similar 30V input and 500mA output specifications.