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Product Detailed Parameters
- Description：AUDIO AMPLIFIER
- Series：-
- Mfr：Fairchild Semiconductor
- Package：Bulk
- Type：Class D
- Output Type：1-Channel (Mono)
- Max Output Power x Channels @ Load：2W x 1 @ 4Ohm
- Voltage - Supply：2.5V ~ 5.2V
- Features：AGC, Depop, Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
- Mounting Type：Surface Mount
- Supplier Device Package：12-WLCSP (1.86x1.44)
- Package / Case：12-UFBGA, WLCSP
- Operating Temperature：-
- Grade：-
- Qualification：-
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Overview
The FAB3102UCX is a Class D audio amplifier integrated circuit manufactured by Fairchild Semiconductor. It features a single-channel mono output configuration designed for compact applications. The device utilizes a 12-WLCSP package with dimensions of 1.86x1.44 mm, facilitating surface-mount technology installation. This component operates as an audio amplifier IC within the semiconductor interface category.
Feature Summary
- Class D amplification topology for efficient audio signal processing
- Single-channel mono output architecture
- Ultra-compact 12-WLCSP surface-mount packaging
Applications
- Portable audio devices requiring small form factors
- Embedded mono audio systems
- Compact consumer electronics with limited board space
Procurement Notes
Verify product status carefully as this specific part number may be listed as obsolete in current distributor databases. Confirm availability through authorized onsemi channels, as Fairchild Semiconductor operations have been integrated into onsemi. Ensure compatibility with existing PCB layouts due to the specific WLCSP footprint requirements before procurement.
Selection Notes
Select this component when a mono Class D amplifier is required in a minimal footprint. The 12-WLCSP package suits designs where space is constrained. Consider that it lacks an integrated boost regulator compared to similar models like the FAB3103, necessitating external power management if higher voltage swings are needed.
Part Context
Fairchild Semiconductor was acquired by onsemi. Consequently, documentation and support for the FAB3102UCX are now managed under the onsemi portfolio. The component remains a legacy part from the Fairchild era, often referenced in older design specifications or maintenance projects involving previously deployed hardware.
Replacement Considerations
Check for direct equivalents within the onsemi lineup. The FAB3103UCX offers similar amplification but includes an integrated boost regulator, which may require different power supply design considerations. Verify pin-to-pin compatibility and thermal performance before substituting.
