FX004

Special Purpose Regulators Overview

The Texas Instruments FX004 is a synchronous buck controller designed for DDR2, DDR3, DDR3L, and DDR4 memory power solutions. It integrates four output channels with a switching frequency of 400 kHz. The device supports an output voltage of 600 mV and delivers up to 20 A of output current. It operates within a temperature range of -40°C to +85°C and is housed in a 20-pin WQFN package.

Special Purpose Regulators Feature Summary

• Integrates synchronous buck controller topology for efficient power conversion
• Provides dedicated outputs for VDDQ, Vref, and VTT memory rails
• Includes integrated 2-A LDO and buffered reference components

Special Purpose Regulators Applications

• DDR2 memory subsystem power management
• DDR3 and DDR3L memory power supply design
• DDR4 memory power solution implementation

Special Purpose Regulators Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm pinout compatibility and thermal specifications. Ensure the component matches the required WQFN-20 package dimensions and lead finish. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and traceability before procurement.

Special Purpose Regulators Selection Notes

Select this component when designing power systems for DDR2, DDR3, DDR3L, or DDR4 memory interfaces requiring integrated control. Consider the 20-WQFN package for space-constrained layouts. Verify that the 400 kHz switching frequency aligns with electromagnetic interference requirements and that the 20 A current capability meets the target memory load demands.

Special Purpose Regulators Part Context

This component belongs to Texas Instruments' portfolio of specialized power management integrated circuits for high-speed memory applications. It consolidates multiple power stages into a single solution, reducing the bill of materials and board area compared to discrete implementations for standard memory power rails.

Special Purpose Regulators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.