SY8388ARHC SY8388A B3DWC B3EJC B3E B3C B3 Marking QFN-16

The SY8388ARHC SY8388A B3DWC B3EJC B3E B3C B3 Marking QFN-16 is a high-efficiency synchronous step-down DC/DC Charging IC capable of delivering up to 8A output current across a wide 4V to 24V input range. It features Silergy’s proprietary Instant-PWM™ constant-on-time (COT) control technology, which ensures fast transient response, stable operation, and consistent switching frequency across varying line, load, and output conditions.

This advanced control method provides excellent performance even with low-ESR ceramic capacitors, eliminating the need for complex external compensation. The IC integrates a 20mΩ high-side power MOSFET and a 10mΩ synchronous rectifier switch, achieving exceptional efficiency for low-voltage, low-duty-cycle applications.

The SY8388A also includes an integrated bypass switch, enabling operation from an external DC source when needed.

Comprehensive protection features SY8388ARHC SY8388A B3DWC B3EJC B3E B3C B3 Marking QFN-16 including cycle-by-cycle current limiting, input under-voltage lockout, soft-start, output over/under-voltage, and thermal shutdown — ensure safe and reliable performance in all working conditions.

Packaged in a compact QFN 2.5×2.5-16, this IC is ideal for laptop motherboards, graphic cards, tablet power stages, and embedded DC-DC converter modules.