LTC3718EG#TRPBF

Special Purpose Regulators Overview

The LTC3718EG#TRPBF is a synchronous step-down DC/DC controller designed for high-performance DDR and QDR voltage regulation. It operates with an input voltage range of 2.95V to 5.5V, delivering up to 20A output current. The device features a programmable switching frequency from 300kHz to 600kHz and supports multiple outputs including VDDQ, VTT, and VREF. It utilizes a 24-lead SSOP package and functions within a temperature range of -40°C to +85°C.

Special Purpose Regulators Feature Summary

• Integrated dual N-channel power MOSFET drivers for efficient synchronous rectification
• Programmable switching frequency allows optimization for size and efficiency
• Built-in soft-start circuitry limits inrush current during startup
• Supports precise tracking of multiple output voltages

Special Purpose Regulators Applications

• DDR memory power supplies
• QDR SRAM voltage regulation
• High-speed logic core voltage generation
• Point-of-load conversion modules

Special Purpose Regulators Procurement Notes

Verify the specific suffix TRPBF indicates tape-and-reel packaging with lead-free finish. Confirm the EG variant meets the specified industrial temperature range. Ensure compatibility with existing PCB footprints for the 24-SSOP package before finalizing procurement orders.

Special Purpose Regulators Selection Notes

Select this component when designing systems requiring synchronized buck conversion for memory interfaces. Consider the 20A current capability and wide input voltage range suitable for 3.3V or 5V bus architectures. Evaluate thermal performance requirements based on the SSOP package limitations compared to larger packages.

Special Purpose Regulators Part Context

This part belongs to the LTC3718 family of synchronous controllers. It is distinct from other regulators by its specific integration for DDR/QDR applications. The EG#TRPBF designation identifies the industrial grade version in tape-and-reel format manufactured by Analog Devices Inc.

Special Purpose Regulators Replacement Considerations

Direct substitutes include other Analog Devices DDR controllers such as the LTC3718EG#PBF for tube packaging. Cross-vendor replacements require matching input voltage ranges, current capabilities, and pinout compatibility.