LTC1693-3CMS8#PBF

Overview

The LTC1693-3CMS8#PBF is a high-speed single N-channel MOSFET gate driver manufactured by Analog Devices Inc. It operates within a supply voltage range of 2.9V to 5.5V and supports clock frequencies up to 400kHz. The device features a propagation delay of 130ns and functions as an inverting or non-inverting buffer for I2C, SMBus, and 2-wire interfaces. It is housed in an 8-pin MSOP package and is designed for surface-mount installation with an operating temperature range from 0°C to +70°C.

Feature Summary

• Provides high-speed signal buffering and re-driving capabilities for two-wire bus systems
• Supports both inverting and non-inverting output configurations via external pin selection
• Designed to maintain signal integrity on I2C and SMBus lines under high noise margin conditions

Applications

• I2C bus signal buffering and extension
• SMBus interface signal conditioning
• Two-wire bus system repeaters

Procurement Notes

Verify the specific suffix '#PBF' indicates lead-free tape-and-tube packaging when ordering. Confirm that the 'CMS8' designation corresponds to the correct MSOP-8 body style and thermal characteristics required for your PCB layout. Ensure compatibility with the 2.9V to 5.5V supply voltage range before finalizing procurement specifications.

Selection Notes

Select this component when high-speed buffering of I2C or SMBus signals is required without adding significant capacitance to the bus lines. It is suitable for applications needing signal regeneration over longer traces or multiple branches. Consider the MSOP-8 package constraints and the unidirectional nature of the driver when designing the circuit topology.

Part Context

This part belongs to the LTC4313 family of bus buffers, specifically optimized for high-noise margin applications. While sharing functional similarities with other bus drivers, it is distinct from the LTC1693 gate driver series despite similar naming conventions. It serves as a specialized interface solution rather than a general-purpose logic buffer.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify electrical compatibility with existing designs if considering alternative manufacturers.