LTC3873ETS8-5#TRPBF

DC DC Switching Controllers Overview

The LTC3873ETS8-5#TRPBF is a constant frequency current mode DC/DC controller designed for boost, flyback, and SEPIC topologies. It operates with an input voltage range of 4 V to 75 V and supports output voltages from 1.2 V to 60 V. The device drives N-channel MOSFETs with a maximum output current capability of 2 A. Key electrical parameters include a switching frequency of 200 kHz, a static current of 300 uA, and load regulation of 0.05%. It functions within a temperature range of -40°C to +85°C and is housed in a TSOT-23-8 package.

DC DC Switching Controllers Feature Summary

• Supports multiple converter topologies including boost, flyback, and SEPIC configurations.
• Enables high input and output voltage applications through N-channel MOSFET drive.
• Features no RSENSE constant frequency current mode control architecture.

DC DC Switching Controllers Applications

• Negative-to-negative (negative buck) converters
• Isolated housekeeping telecom converters
• SEPIC converters

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm that the ETS8 designation corresponds to the TSOT-23-8 surface mount package required for the design. Ensure the component meets RoHS3 compliance standards if applicable to the manufacturing process. Cross-reference the Analog Devices datasheet for the exact pinout and thermal characteristics associated with this specific package variant.

DC DC Switching Controllers Selection Notes

Select this controller for designs requiring flexibility across boost, flyback, or SEPIC topologies. It is suitable for applications demanding high input voltages up to 75 V. The fixed 200 kHz switching frequency aids in passive component selection. Consider the 300 uA quiescent current impact on standby power requirements. Verify that the external N-channel MOSFET selected can handle the required voltage and current ratings for the specific topology.

DC DC Switching Controllers Part Context

This component belongs to the LTC3873-5 series of DC/DC controllers manufactured by Analog Devices Inc. It is part of the PMIC category, specifically functioning as a switching voltage regulator controller. The device is distinct from the LTC3872 series, which is limited to boost topology only. The LTS8-5 suffix identifies the specific package and version within this product family.

DC DC Switching Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult official Analog Devices resources for potential alternatives or direct replacements within the same product family.