Up0104s Datasheet May 2026

Here’s a useful, structured write-up for understanding and using the UP0104S (a common PWM step-down DC-DC controller IC, often used in motherboard VRM or other power regulation circuits).

The "S" variant of the UP0104 series is unique because its pin arrangement is optimized for high-density interconnects. While the "P" variant (UP0104P) is a standard drop-in for legacy systems, the UP0104S features a layout intended to reduce signal interference. 💡 Design Tips for Engineers Avoid Mixing Variants: Do not swap the Go to product viewer dialog for this item.

Compatibility: Always verify specific electrical characteristics (like operating voltage range and maximum current) against the datasheet, as different variants (like the UP0104SSW8) may have slight package or performance variations.  Up0104s Datasheet

: The "S" variant (uP0104S) is noted for its design that minimizes parasitic capacitance

Would you like a schematic example or help calculating resistor values for a specific output voltage? Here’s a useful, structured write-up for understanding and

The UP0104S is packaged in an SOP-8 package, with the following pin configuration:

The uP0104 series (including P, T, and S variants) is widely used in: Graphics Cards (GPUs): Used for power rail regulation in desktop video cards. High-Speed Buffers: 💡 Design Tips for Engineers Avoid Mixing Variants:

8. Equivalent / Replacement Parts

If UP0104S is not available, consider: