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Monolithic Power Systems variants offering robust efficiency and matching SOP/DFN footprints.

Main power supply input pin. Must be decoupled with a high-quality ceramic capacitor to ground.

The “8681L” is a powerful and efficient from O2Micro, widely used in laptops and portable devices. While its full datasheet PDF is not publicly available for a direct “hot download,” the essential technical specifications, pinout, application circuits, and troubleshooting know‑how can be gathered from:

Output of the internal linear regulator used to power internal control circuits.

: Replacing these ICs requires professional soldering tools (like a hot air rework station) due to the QFN-16 surface-mount footprint. It is recommended to perform repairs in a dust-free environment. 8681L Datasheet, PDF - ALLDATASHEET.COM

Below is a standard layout configuration for a typical 8-pin implementation of the 8681L series: Pin Number Functional Description GND

Choose an inductor with a saturation current rating that exceeds the maximum peak current of the application.

Negative input for the battery charge current sensing resistor. BAT Analog Input

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