Recent ChargerLAB teardowns confirm that Southchip has introduced the SC5008—a cutting-edge 15W highly-integrated wireless charging transmitter power stage IC tailored for WPC-compliant transmitters. Packed into a compact QFN-19 footprint, the SC5008 revolutionizes integration by fusing a full-bridge power stage, high-performance gate drivers, integrated LDOs, ASK demodulation, and high-accuracy input current sensing onto a single piece of silicon. It delivers a unified analog front-end and power delivery engine for magnetic charging docks, wireless power banks, and desktop accessories, slashing peripheral component counts and development hurdles.
The SC5008 shines in power density and thermal management. Operating across a wide 3.2V to 17V input range, it integrates four low-on-resistance power MOSFETs rated at an incredibly low 12mΩ, establishing a highly efficient full-bridge output stage. Paired with dedicated FET drivers and bootstrap circuitry, it systematically reduces switching losses and thermal buildup. Additionally, it embeds dual LDO rails (5V/100mA and 3.3V/80mA), which easily handle internal bias while providing power externally to the system MCU, vastly simplifying the primary power supply design. Protocol-wise, it fully supports WPC V1.3.2 specifications, spanning 5W BPP up to 15W EPP, while accepting 3.3V and 5V PWM logic levels to ensure plug-and-play compatibility with mainstream microcontrollers. To tackle stringent Foreign Object Detection (FOD) requirements, the SC5008 features high-precision input current sensing. This allows real-time bus current monitoring to cross-reference with receiver feedback, guaranteeing accurate calibration. Combined with a robust protection matrix (UVLO, OCP, short-circuit protection, and thermal shutdown), it ensures bulletproof reliability under fault conditions. The IC is already driving volume production in tier-one retail hits like the OPPO 5000mAh Magnetic Power Bank and the inno3C 22.5W Magnetic Wireless Power Bank, proving its exceptional electrical performance and thermal headroom in the wild.
By seamlessly merging full-bridge inversion, bias supplies, and communication sampling into a single-chip powerhouse, Southchip's SC5008 offers a robust, high-density golden path for 15W magnetic and wireless transmitters. It bypasses the engineering headache of shoehorning discrete MOSFET arrays and gate drivers into tight enclosures, while elevating the safety and consistency of domestic wireless power ecosystems. As demand skyrockets for space-constrained, multi-device wireless accessories, highly integrated power-stage SoCs like the SC5008 will serve as the primary catalyst pushing consumer, industrial, and medical wireless charging toward ultra-compact, smarter horizons.
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