FSA2270TUMX

Analog Switches - Special Purpose Overview

The FSA2270TUMX is a dual SPDT analog switch manufactured by onsemi (formerly Fairchild Semiconductor). It operates within a single supply voltage range of 1.65 V to 5.5 V, ensuring compatibility with low-voltage digital systems. The device features an ultra-low on-resistance of 1.4 Ω at 3.3 V and 1.8 Ω at 5 V, facilitating high-speed signal integrity. Key electrical parameters include a breakdown voltage of 5.5 V, an off-isolation of -55 dB, and a channel-to-channel matching of 0.05 Ω. The package is a compact 6-lead UDFN (1x1 mm), designed for space-constrained portable applications.

Analog Switches - Special Purpose Feature Summary

• Ultra-low on-resistance ensures minimal signal attenuation across the operating voltage range.
• High off-isolation prevents signal leakage between disconnected channels.
• Compact 6-lead UDFN package supports dense PCB layouts in mobile devices.

Analog Switches - Special Purpose Applications

• Portable multimedia equipment
• Cellular phones
• LCD monitor protection

Analog Switches - Special Purpose Procurement Notes

Verify the manufacturer origin, as onsemi acquired Fairchild Semiconductor's assets. Confirm the specific suffix 'F106' or similar if required for tape-and-reel specifications. Check RoHS compliance status against current environmental regulations. Ensure the component matches the original Fairchild datasheet specifications for critical design-in reviews.

Analog Switches - Special Purpose Selection Notes

Select this component when dual SPDT switching is required in ultra-thin form factors. Compare on-resistance values against system impedance requirements to ensure signal fidelity. Verify that the 5.5 V maximum rating aligns with the highest expected signal swing. Consider the thermal performance of the UDFN package for high-density designs.

Analog Switches - Special Purpose Part Context

This part belongs to the FSA22xx series of low-power analog switches. It serves as a direct replacement for legacy Fairchild components in existing designs. The series is characterized by its ability to handle both audio and video signals with minimal distortion. It complements other single-pole switches in the same family for multi-channel routing solutions.

Analog Switches - Special Purpose Replacement Considerations

The FSA2271TUMX is a documented related part number within the same product line. Verify pinout compatibility before substitution. Ensure the replacement meets the same 1.65 V to 5.5 V operating range and package dimensions.