74LVC1G126QW5-7

Overview

The Diodes Incorporated 74LVC1G126QW5-7 is an automotive-compliant, single-channel non-inverting buffer with a three-state output. It operates within a supply voltage range of 1.65V to 5.5V and features inputs tolerant up to 5.5V for mixed-voltage environments. The device includes IOFF circuitry to support partial power-down applications by disabling outputs and preventing backflow current. It provides ±24mA output drive at 3.3V and meets Grade 1 ambient temperature operation from -40°C to +125°C.

Feature Summary

• Automotive-grade qualification compliant with AEC-Q100 standards
• Integrated IOFF circuitry prevents damaging current backflow during partial power-down states
• Inputs accept voltages up to 5.5V, enabling compatibility in mixed-voltage systems
• ESD protection exceeds 2000V Human Body Model and 1000V Charged Device Model

Applications

• Voltage level shifting between different logic domains
• Power down signal isolation in automotive and industrial systems
• General purpose logic buffering in high reliability networking equipment

Procurement Notes

Verify the specific ordering suffix matches the required package type, as W5 denotes SOT25 and SE denotes SOT353. Confirm that the component meets the necessary AEC-Q100 qualification requirements for your specific application environment. Ensure that design parameters align with the recommended operating conditions provided in the official datasheet to maintain performance integrity.

Selection Notes

Select this component when an automotive-qualified, single-channel buffer with three-state control is required. It is suitable for designs needing mixed-voltage interface capabilities where inputs must tolerate 5.5V while the core logic operates at lower voltages. The inclusion of IOFF functionality makes it appropriate for systems requiring safe isolation during power-down sequences.

Part Context

This part belongs to the 74LVC1G126Q series, which represents the automotive-compliant variant of the standard 74LVC1G126 buffer family. While functionally similar to commercial grade parts, the Q-series is manufactured in IATF 16949 certified facilities and supports PPAP requirements. It shares the same logical function but adheres to stricter automotive quality and reliability standards.

Replacement Considerations

The 74LVC1G126SE-7 serves as a direct functional substitute if the SOT353 package is acceptable instead of the SOT25 configuration. Both parts share identical electrical characteristics and logical functions, differing only in physical footprint dimensions.