APK43070QDKZW-13-FA01

APK43070Q Single-Chip Synchronous Buck Controller

Diodes Incorporated APK43070Q Single-Chip Synchronous Buck Controller (SBC) is integrated with a USB Type‑C^® Power Delivery (PD3.1) source controller. This supports Standard Power Range (SPR) up to 21V, Programmable Power Supply (PPS) up to 21V, Extended Power Range (EPR) up to 28V, and Adjustable Voltage Supply (AVS) up to 28V. The APK43070Q combines a high‑efficiency constant‑frequency step‑down controller with integrated drivers for external N-MOSFETs for medium‑ to high‑power designs. The controller integrates the SBC and PD3.1 decoder functions, reducing the PCB size and footprint for high-power-density charging applications. The I²C communication and multi‑port addressing (up to 8 ports) allow smart power sharing without an external microcontroller. The Diodes Incorporated APK43070Q SBC is AEC‑Q100 qualified and optimized for reliable USB-PD charging in vehicle power systems.