LT8705HFE#TRPBF

Overview

The LT8705HFE#TRPBF is a high-performance synchronous 4-switch buck-boost DC/DC controller manufactured by Analog Devices Inc. It operates with an input voltage range of 2.8V to 80V and supports switching frequencies between 100kHz and 400kHz. The device features two output phases and positive output configuration, housed in a 38-TSSOP-EP package. It includes clock synchronization capabilities and control features such as enable, frequency control, and soft start.

Feature Summary

• Synchronous four-switch topology enabling operation with input voltages above, below, or equal to the output voltage
• Clock synchronization capability for multi-phase alignment and noise reduction
• Integrated control features including programmable soft start and frequency control

Applications

• Supercapacitor backup power systems
• Industrial distributed power architectures
• Telecom voltage stabilizers

Procurement Notes

Verify the specific suffix TRPBF indicates tape and reel packaging when ordering. Confirm the manufacturer part number matches exactly to ensure correct pinout and thermal pad configuration. Check current availability status as supply conditions may vary. Ensure the selected variant meets the required operating temperature range specifications for the intended application environment.

Selection Notes

Select this component for applications requiring wide input voltage ranges up to 80V. Consider the synchronous rectification for improved efficiency compared to non-synchronous alternatives. Evaluate the need for clock synchronization if multiple converters are present in the system. Verify that the 38-pin TSSOP package fits within the available PCB footprint constraints.

Part Context

This part belongs to the LT8705 family of buck-boost controllers from Analog Devices. It shares core architecture with variants like LT8705EFE but differs in package type and thermal characteristics. The HFE designation typically denotes a specific temperature grade and package configuration within the product line.

Replacement Considerations

LT8705EFE#TRPBF is a compatible alternative within the same family offering similar electrical performance in a different package configuration.