FAN1581D15X

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

The FAN1581D15X is a linear voltage regulator IC providing a fixed positive output of 1.5V with a maximum output current of 5A. It utilizes a TO-252-5 (DPAK) package and operates within an input voltage range up to 7V. The device features a typical dropout voltage of 0.4V at full load, ensuring efficient performance in low-voltage applications. Quiescent current is specified at 6mA, and it includes protection against over-current and over-temperature conditions.

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

• Ultra-low dropout voltage characteristic for efficient power management
• High current capability supporting up to 5A continuous output
• Integrated thermal limiting and over-current protection mechanisms
• Optimized transient response for sensitive digital logic loads

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

• GTL+ bus VTT termination
• Low voltage logic supply
• Embedded processor supplies
• DDR termination supply

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

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix 'D15X' corresponds to the fixed 1.5V output variant in the TO-252-5 package. Check datasheet revisions for any updates regarding environmental compliance or pinout configurations prior to integration.

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

Select this component when a stable 1.5V rail is required for high-current digital circuits. Ensure the input voltage remains within the specified operational limits to maintain regulation. Consider the thermal performance of the TO-252-5 package relative to the expected ambient temperature and PCB copper area for adequate heat dissipation during peak load conditions.

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

This part belongs to the FAN1581 family of ultra-low dropout regulators originally developed by Fairchild Semiconductor, now part of onsemi. The series includes adjustable and fixed voltage variants designed for microprocessor and memory applications. The D15X designation specifically identifies the fixed 1.5V output version packaged in the surface-mount TO-252-5 form factor.

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

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing circuit designs if considering alternative manufacturers offering similar 5A LDO specifications.