LTC4313CDD-1#PBF

Signal Buffers, Repeaters, Splitters Overview

The LTC4313CDD-1#PBF is a hot swappable 2-wire bus buffer designed for bidirectional buffering with high noise margin. It supports level translation between 3.3V and 5V busses. The device features a supply voltage range of 2.9V to 5.5V, an input supply current of 8.1mA typical, and operates within a temperature range of 0°C to 70°C. It includes rise time accelerators configured as slew limited switches, precharge circuitry for live insertion, and stuck bus recovery logic.

Signal Buffers, Repeaters, Splitters Feature Summary

• Bidirectional buffering with high noise margin up to 0.3 times VCC
• Level translation capability between 3.3V and 5V busses
• Rise time accelerators configured as slew limited switches
• Precharge circuitry minimizes bus disturbances during live board insertion

Signal Buffers, Repeaters, Splitters Applications

• I2C Hot Swap applications with staggered connectors
• Telecommunications systems including ATCA
• Capacitance buffering and bus extension
• Live board insertion in backplane systems

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific ordering suffix #PBF indicates lead-free finish and tube packaging. Confirm the C suffix denotes the commercial temperature grade (0°C to 70°C). Ensure the DD-1 variant matches the required rise time accelerator configuration compared to other model variants.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this part when level translation between 3.3V and 5V is required alongside hot swap capabilities. The -1 variant provides strong slew-limited rise time acceleration suitable for heavily loaded buses. Verify that the system bus capacitance and pull-up resistor values align with the RTA activation requirements.

Signal Buffers, Repeaters, Splitters Part Context

This component belongs to the LTC4313 family of 2-wire bus buffers. The -1 suffix distinguishes it from -2 and -3 variants by its specific rise time accelerator implementation. It shares the same DFN package and core functionality but differs in acceleration strength and supported voltage levels.

Signal Buffers, Repeaters, Splitters Replacement Considerations

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