LTC4301LIMS8#TRPBF

Signal Buffers, Repeaters, Splitters Overview

The LTC4301LIMS8#TRPBF is a supply-independent hot swappable 2-wire bus buffer manufactured by Analog Devices Inc. It operates within a VCC range of 2.7V to 5.5V and supports I2C, Fast Mode, and SMBus standards up to 400kHz. The device features bidirectional buffering for SDA and SCL lines, level translation from 1V signals to standard logic rails, and isolates input/output capacitances during live board insertion. It includes 10kV HBM ESD protection, clock stretching support, and a CS pin for connection control. Packaged in an 8-lead MSOP with an exposed pad.

Signal Buffers, Repeaters, Splitters Feature Summary

• Prevents data corruption during live backplane insertion by isolating card and backplane capacitances
• Translates low voltage signals (down to 1V) to standard 3.3V and 5V logic levels
• Provides high impedance pins when VCC is 0V to prevent bus loading
• Supports I2C arbitration, synchronization, and clock stretching protocols

Signal Buffers, Repeaters, Splitters Applications

• Hot swappable I/O card insertion into live backplanes
• Servers requiring safe module replacement
• Desktop computer expansion slots
• Capacitance buffering and bus extension

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging configuration. Confirm the IMS8 variant corresponds to the 8-lead MSOP package type. Ensure the component meets the required operating temperature range specifications for the target application environment before finalizing procurement orders.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component when designing systems that require safe insertion of I/O cards into active backplanes without disrupting ongoing bus transactions. It is suitable for applications needing level translation between different voltage domains on the same bus. Consider the 8-lead MSOP package constraints and thermal requirements when laying out the PCB.

Signal Buffers, Repeaters, Splitters Part Context

This part belongs to the LTC4301 family of hot swappable bus buffers. It shares functional similarities with the LTC4300A but offers supply independence, allowing operation with pull-up voltages as low as 1V on the input side. It serves as a specialized interface solution for robust system integration in server and computing hardware environments.

Signal Buffers, Repeaters, Splitters Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.