FAN1581M25X

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

The FAN1581M25X is a linear voltage regulator IC manufactured by onsemi, designed for applications requiring stable power delivery. It provides a fixed positive output voltage of 2.5V with a maximum continuous output current capability of 5A. The device operates within an input voltage range up to a maximum of 7V and features a typical quiescent current of 6 mA. It incorporates comprehensive protection mechanisms including over-current and over-temperature shutdown to ensure reliable operation under fault conditions. The component is housed in a TO-252-5 surface-mount package, suitable for space-constrained designs.

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

• Provides a fixed 2.5V output with high current drive capability
• Integrated thermal and current limiting protection circuits
• Low quiescent current consumption for efficiency

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

• Point-of-load regulation in embedded systems
• Power supply stages for microcontrollers and digital logic
• Battery-powered devices requiring efficient voltage step-down

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

Verify the exact suffix against official documentation, as variations may exist. Confirm the part status, as this specific model may be obsolete or superseded by newer revisions. Ensure compatibility with your PCB footprint and thermal management requirements before finalizing procurement decisions.

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

Select this component when a fixed 2.5V rail is required at currents up to 5A. Consider the input voltage headroom relative to the dropout voltage at full load. Evaluate thermal dissipation capabilities based on the ambient temperature and PCB copper area available for heat spreading in the TO-252-5 package.

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

The FAN1581 series belongs to onsemi's portfolio of low-dropout linear regulators. These devices are engineered for stability and robustness in power management applications. The M25X suffix typically denotes a specific output voltage variant and packaging configuration within the broader FAN1581 family.

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

Check for direct pin-compatible replacements from onsemi or other manufacturers offering similar 5A LDO specifications. Verify that any substitute maintains the same 2.5V output, current rating, and protection features.