LTC3717EGN#TRPBF

Special Purpose Regulators Overview

The LTC3717EGN#TRPBF is a synchronous buck controller manufactured by Analog Devices Inc., housed in an SSOP-28 package. It operates with an input voltage range of 5 V to 20 V and delivers an output current capability of up to 12 A. The device supports adjustable output voltages, typically centered around 1.25 V for specific termination applications. It functions within a temperature range of -40°C to +85°C and utilizes a constant on-time, valley current mode control architecture.

Special Purpose Regulators Feature Summary

• Employs constant on-time, valley current mode control for stable operation
• Supports bidirectional current flow for active termination requirements
• Integrated synchronous rectification for high efficiency

Special Purpose Regulators Applications

• DDR memory termination power supplies
• QDR memory termination power supplies
• HSTL termination circuits
• STTL termination circuits

Special Purpose Regulators Procurement Notes

Verify the exact suffix against official Analog Devices documentation to confirm tape-and-reel packaging and temperature grade. Confirm that the SSOP-28 package matches your PCB footprint requirements. Ensure the 5V to 20V input range aligns with your system design constraints before finalizing procurement.

Special Purpose Regulators Selection Notes

Select this component when designing termination power supplies for high-speed memory interfaces requiring bidirectional current handling. The constant on-time architecture simplifies compensation compared to fixed-frequency PWM controllers. Verify that the 12A current capability meets the peak transient demands of the target memory devices.

Special Purpose Regulators Part Context

This part belongs to the LTC3717 family of synchronous buck controllers designed specifically for memory termination. It complements other PMIC solutions by providing dedicated regulation for logic levels such as HSTL and STTL. The controller is often evaluated using demonstration circuits like the DC450A to validate performance in DDR or QDR environments.

Special Purpose Regulators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Analog Devices technical support for direct replacements or pin-compatible alternatives.