LTC4302IMS-1#TRPBF

Signal Buffers, Repeaters, Splitters Overview

The LTC4302IMS-1#TRPBF is an addressable I²C and SMBus compatible bus buffer in a 10-lead MSOP package. It supports supply voltages from 2.7V to 5.5V with a typical operating current of 5.9mA at 5.5V. The device features rise time accelerators for SDA and SCL lines, enabling heavier capacitive loading while maintaining timing compliance. It provides 32 unique addresses via an external resistive divider on the ADDRESS pin. The component includes two general-purpose input/output pins (GPIO1 and GPIO2) configurable as inputs or outputs. It operates within a temperature range of -40°C to +85°C.

Signal Buffers, Repeaters, Splitters Feature Summary

• Maintains electrical isolation between backplane and peripheral board until power is valid and connection is commanded.
• Prevents SDA and SCL line corruption during live board insertion and removal through precharge circuitry.
• Provides rise time acceleration to support increased bus capacitance without violating system timing requirements.

Signal Buffers, Repeaters, Splitters Applications

• Live board insertion into active backplanes
• I/O card expansion in server systems
• Capacitance buffering and bus extension

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific ordering suffix matches the required package and temperature grade. Confirm that the #TRPBF designation corresponds to the tape and reel packaging format intended for automated assembly processes. Ensure the component source aligns with the manufacturer's authorized distribution channels to guarantee authenticity and traceability.

Signal Buffers, Repeaters, Splitters Selection Notes

Select the LTC4302-1 variant when two general-purpose I/O pins are required for system control or status indication. Choose this part for applications requiring bidirectional level translation between 5V and 3.3V systems if using the -2 variant, though the -1 relies on GPIO flexibility. Ensure the ADDRESS pin resistor network utilizes 1% tolerance resistors to maintain accurate address decoding across the full operating voltage range.

Signal Buffers, Repeaters, Splitters Part Context

This component belongs to the LTC4302 family of addressable 2-wire bus buffers manufactured by Analog Devices. It is designed specifically for hot-swap environments where peripheral cards must be added or removed without disrupting the main I²C or SMBus communication. The IMS-1 suffix indicates the industrial temperature grade and MSOP package configuration.

Signal Buffers, Repeaters, Splitters Replacement Considerations

LTC4302IMS-1#PBF