The NB681GD-Z, also known as NB681G, is a compact 6A synchronous buck regulator with an integrated ULDO (ultra-low dropout regulator) designed for efficient 5V and 3.3V standby power rails. It comes in a QFN-13/16 package, providing high efficiency, fast transient response, and excellent thermal performance for business-class laptop power architecture.
This IC is widely used in models such as HP EliteBook 840 G5, Dell Latitude, and other enterprise notebooks requiring strong standby rail stability.
The AKV-series IC is identified by valid MPS factory markings such as AKVF, AKVE, AKVJ, and AKVX, all belonging to the AKV* marking family. These markings confirm genuine NB681G batches and ensure correct replacement during motherboard repair.
Engineers use this IC to fix 5V/3.3V standby rail failure, no power, slow boot, S5/S0 transition faults, and unstable idle power. OKSpare IC supply, IC ready stock in Nehru Place, IC available at Delhi, quality tested by OKSpare team Delhi, OKSpare tests the quality and dispatches safely.