FAN1655MX

Special Purpose Regulators Overview

The FAN1655MX is a low-cost, bi-directional LDO designed for terminating DDR memory buses. It functions as a DDR voltage regulator IC with one output in a 14-SOIC package. The device can source up to 2.1A continuous and sink up to 3A peak current. It supports termination of DDR memory bus lines, providing stable voltage regulation for high-speed data transmission applications.

Special Purpose Regulators Feature Summary

• Bi-directional current capability allowing both sourcing and sinking operations
• Optimized design specifically for DDR memory bus termination
• Integrated low-dropout regulator architecture for efficient voltage control

Special Purpose Regulators Applications

• DDR memory bus termination circuits
• High-speed digital interface power management
• System-on-chip peripheral power regulation

Special Purpose Regulators Procurement Notes

Verify the manufacturer origin, as Fairchild Semiconductor's semiconductor division is now part of onsemi. Confirm the package type matches the 14-SOIC specification. Ensure the datasheet aligns with the specific bidirectional LDO requirements for DDR termination rather than generic regulators.

Special Purpose Regulators Selection Notes

Select this component when a dedicated, cost-effective solution for DDR bus termination is required. The bidirectional nature allows it to handle both pull-up and pull-down currents essential for maintaining signal integrity on memory interfaces. Ensure thermal management supports the specified continuous and peak current loads.

Special Purpose Regulators Part Context

This component belongs to the family of special purpose regulators focused on memory interface support. It addresses the specific power delivery needs of DDR protocols, distinguishing itself from general-purpose linear regulators by its optimized bidirectional performance and termination-specific characteristics.

Special Purpose Regulators Replacement Considerations

Check for equivalents within the onsemi portfolio following the corporate restructuring. Verify pin compatibility and electrical specifications against other DDR terminator ICs if sourcing from alternative manufacturers.