FSA1157L6X

Analog Switches, Multiplexers, Demultiplexers Overview

The FSA1157L6X is a single-pole, single-throw (SPST) analog switch manufactured by Fairchild Semiconductor. It operates within a supply voltage range of 1.65 V to 5.5 V and features a maximum on-resistance of 900 mΩ. The device supports a switching current of 200 mA with a maximum power dissipation of 180 mW. Propagation delays are specified at 20 ns for turn-on and 30 ns for turn-off. It utilizes a MicroPak-6 package measuring 1.45 x 1 x 0.5 mm and functions across an operating temperature range of -40 °C to +85 °C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Low on-resistance configuration for signal integrity
• Compact MicroPak surface-mount packaging
• Wide single-supply voltage operation capability

Analog Switches, Multiplexers, Demultiplexers Applications

• Portable consumer electronics
• Battery-powered devices
• Signal routing in mobile systems

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the manufacturer designation carefully as Fairchild Semiconductor assets were acquired by onsemi. Confirm the specific suffix L6X corresponds to the MicroPak-6 package variant rather than other available packages like SC-70-6. Ensure compliance with current RoHS standards and check for any obsolescence notices regarding this specific component code.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a low-voltage SPST switch is required in space-constrained designs. The MicroPak-6 footprint offers a smaller profile compared to standard SOT-363 packages. Verify that the 900 mΩ on-resistance meets the signal loss requirements of the application circuit before finalizing the design.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the FSA1157 series of low-voltage analog switches. The L6X suffix specifically denotes the MicroPak-6 package format, distinguishing it from other variants such as the P6X which uses a SC-70-6 package. This series is designed for portable applications requiring minimal board space and low power consumption.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The FSA1157P6X serves as a functional equivalent using a SC-70-6 package. Verify pinout compatibility and package dimensions before substitution. Other members of the FSA1157 family may offer different packaging options but share similar electrical characteristics.