FSUSB23BQX

Analog Switches - Special Purpose Overview

The FSUSB23BQX is a low-power, high-speed USB 2.0 switch manufactured by Fairchild Semiconductor, supporting data rates up to 480 Mbps. It features a single-pole double-throw (SPDT) configuration with one input and two outputs, enabling seamless switching between upstream host connections and downstream peripherals. The device operates within a supply voltage range of 2.7 V to 5.5 V and draws minimal current in standby mode. Packaged in a compact 6-ball Wafer Level Chip Scale Package (WLCSP), it is designed for space-constrained portable applications requiring efficient power management and signal integrity.

Analog Switches - Special Purpose Feature Summary

• Supports USB 2.0 High-Speed data transmission at 480 Mbps
• Provides SPDT switching topology for dual-port connectivity
• Optimized for low-power operation in portable electronic devices

Analog Switches - Special Purpose Applications

• Portable media players and digital audio devices
• Mobile phones and smartphones
• Personal Digital Assistants (PDAs)
• MP3 players and handheld gaming consoles

Analog Switches - Special Purpose Procurement Notes

Verify the manufacturer source carefully, as Fairchild Semiconductor was acquired by onsemi. Ensure the component is sourced from authorized distributors to guarantee authenticity. Check for specific marking codes or date codes that align with Fairchild production records rather than generic onsemi labels if strict heritage sourcing is required.

Analog Switches - Special Purpose Selection Notes

Select this component when a single USB port must be shared between two downstream devices or when connecting to multiple hosts. It is suitable for designs prioritizing minimal board space due to its WLCSP footprint. Ensure the system logic levels are compatible with the control pins and that the operating voltage remains within the specified 2.7 V to 5.5 V range.

Analog Switches - Special Purpose Part Context

This part belongs to the FSUSB23 series of high-speed USB switches. It shares functional similarities with the FSUSB23 and FSUSB23L10X but differs in packaging and specific pinout configurations. The BQX suffix typically denotes the specific wafer-level package variant used in compact consumer electronics assemblies.

Analog Switches - Special Purpose Replacement Considerations

Direct substitutes include the FSUSB23 and FSUSB23BQX from the same family. Cross-manufacturer alternatives may require verification of pin compatibility and electrical characteristics such as on-resistance and propagation delay.