LTC4301LCMS8#PBF

Signal Buffers, Repeaters, Splitters Overview

The LTC4301LCMS8#PBF is a hot swappable, supply-independent 2-wire bus buffer manufactured by Analog Devices Inc. It operates within a voltage range of 2.7V to 5.5V and supports I2C, I2C Fast Mode, and SMBus standards up to 600kHz. The device translates signals from as low as 1V to standard logic rails while isolating input and output capacitances. It features a single channel with bidirectional buffering for SDA and SCL lines, ensuring data integrity during live board insertion. The component includes 10kV HBM ESD protection and is housed in an 8-lead MSOP package.

Signal Buffers, Repeaters, Splitters Feature Summary

• Provides bidirectional buffering for SDA and SCL lines to increase fanout capability
• Prevents bus corruption during live board insertion and removal via controlled connection sequencing
• Translates low voltage signals (down to 1V) to standard 3.3V and 5V logic rails

Signal Buffers, Repeaters, Splitters Applications

• Hot board insertion into live backplanes
• Servers requiring safe I/O card integration
• Capacitance buffering and bus extension
• Desktop computers with hot-swappable components

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific suffix #PBF confirms lead-free status and RoHS compliance when sourcing. Confirm the 'L' designation indicates the commercial temperature range of 0°C to 70°C. Ensure the MSOP-8 package matches the target PCB footprint requirements before finalizing procurement orders.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this part when system designs require isolation between backplane and card capacitances during hot swap events. It is suitable for applications needing level translation from voltages as low as 1V. Verify that the operating environment remains within the 0°C to 70°C commercial range specified for the LC variant.

Signal Buffers, Repeaters, Splitters Part Context

This component belongs to the LTC4301 family of supply-independent hot swappable bus buffers. It shares functional similarities with the LTC4300A but offers enhanced capabilities for translating lower input voltages. The MSOP-8 package provides a compact solution for space-constrained interface designs.

Signal Buffers, Repeaters, Splitters Replacement Considerations

The LTC4301LIMS8#PBF serves as a direct replacement if an extended industrial temperature range (-40°C to 85°C) is required instead of the commercial range.