MIC37501-3.3WR

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

The MIC37501-3.3WR is a fixed-output linear voltage regulator manufactured by Microchip Technology, providing a stable 3.3V output with a maximum current capacity of 5A. It operates within an input voltage range up to 6V and features a typical dropout voltage of 0.5V at full load. The device is housed in a 7-SPAK surface-mount package (8-pin, 7+Tab) designed for efficient thermal dissipation. It supports an operating temperature range from -40°C to +125°C and includes protection against overcurrent, overtemperature, and reverse polarity conditions.

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

• Provides high-current regulation capability up to 5A with low dropout characteristics
• Integrates comprehensive protection mechanisms including overcurrent, thermal shutdown, and reverse polarity blocking
• Utilizes a specialized 7-SPAK surface-mount package optimized for thermal performance in compact designs

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

• Power supply stages for embedded systems requiring stable 3.3V logic levels
• Portable electronic devices needing efficient linear regulation under moderate load conditions
• Industrial control modules operating in extended temperature environments

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

Verify the specific suffix 'WR' corresponds to the tube packaging configuration as indicated in official documentation. Confirm that the 7-SPAK footprint matches your PCB layout requirements. Ensure compatibility with the 6V maximum input limit for your application circuit. Check for RoHS compliance status if required by your manufacturing standards. Validate the component's availability through authorized distributors to avoid counterfeit risks.

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

Select this component when a fixed 3.3V output is required with up to 5A current capability. Consider the 0.5V dropout voltage constraint relative to your minimum input voltage. Evaluate the thermal management needs associated with the 7-SPAK package under expected load conditions. Compare against other LDOs if lower quiescent current or adjustable output is needed. Ensure the operating temperature range meets your environmental specifications.

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

This part belongs to the MIC37501 series of low-dropout regulators from Microchip Technology. The series is characterized by high current output and robust protection features. The MIC37501-3.3WR specifically denotes the 3.3V fixed output variant in the WR tube package. It complements other variants in the family offering different output voltages and current ratings.

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

Direct substitutes may include other MIC37501 variants with different output voltages if voltage adjustment is feasible. Cross-reference with similar 5A LDOs from other manufacturers ensuring compatible pinouts and thermal packages. Verify electrical parameters such as dropout voltage and protection thresholds match application requirements before substitution.