LTC4313CMS8-3#TRPBF

Signal Buffers, Repeaters, Splitters Overview

The LTC4313CMS8-3#TRPBF is a hot swappable 2-wire bus buffer designed for I2C, SMBus, and PMBus applications. It provides bidirectional buffering with high noise margin up to 0.3 • VCC, enabling interoperability with non-compliant devices driving high VOL. The device supports level translation between 3.3V, 5V, 1.5V, 1.8V, and 2.5V busses. Key electrical parameters include a supply voltage range of 2.9V to 5.5V, maximum clock frequency of 400kHz, input capacitance of 10pF, and operating temperature from 0°C to 70°C. It features precharge circuitry to minimize bus disturbances during insertion.

Signal Buffers, Repeaters, Splitters Feature Summary

• High noise margin allows operation with non-compliant I2C devices
• Precharges SDA and SCL lines to 1V during live board insertion
• Disconnects and recovers stuck buses automatically
• Provides level translation to low voltage busses including 1.5V

Signal Buffers, Repeaters, Splitters Applications

• Bidirectional buffering to increase fanout
• Live board insertion in telecommunications systems
• Level translation between different voltage domains
• Capacitance buffering for bus extenders

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing components. Confirm the CMS8 package type matches the design requirements. Ensure the C grade temperature range meets the operational environment specifications before finalizing procurement orders.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this model for applications requiring level translation to voltages below 2.9V, such as 1.5V or 1.8V busses. Unlike other variants, this version lacks rise time accelerators, making it suitable where lower power consumption or simpler drive requirements are prioritized over fast edge rates on heavily loaded buses.

Signal Buffers, Repeaters, Splitters Part Context

This component belongs to the LTC4313 family of 2-wire bus buffers. It shares core functionality with the LTC4313-1 and LTC4313-2 but differs in its support for lower voltage translations and absence of rise time accelerator circuits. It is housed in an 8-lead MSOP package.

Signal Buffers, Repeaters, Splitters Replacement Considerations

LTC4313IMS8-3#TRPBF offers the same functionality with an extended industrial temperature range of -40°C to 85°C.