The INN3376C-H301-TL from Power Integrations is an Off-line Quasi-Resonant Flyback Switcher IC that converts an AC input voltage of 85-265 V to a regulated DC output of 3-24 V. It provides an output power of up to 40 W at 230 V input and 36 W at universal input, with a switching frequency ranging from 25-95 kHz. This AC-DC converter integrates a multi-mode Quasi-Resonant (QR) / DCM / CCM flyback controller, high-voltage switch, secondary-side sensing and synchronous rectifier driver, and FluxLink feedback for high efficiency and compact design. It provides less than 30 mW of no-load power, including line sense and MCU, and has low heat dissipation.

This converter offers built-in protection against overvoltage, input voltage monitoring with accurate brown-in/brown-out, and output OV/UV fault detection. It is certified to UL1577, EN62368-1, and GB4943.1 safety standards, supporting reinforced isolation with a rating of over 4000 VAC. This converter is available in a compact surface-mount package that measures 13.43 × 9.40 × 1.60 mm and is ideal for high-efficiency USB PD 3.0 + PPS/QC adapters, multi-protocol adapters including QuickCharge, AFC, FCP, SCP, direct-charge mobile device chargers, multi-chemistry tool, general-purpose battery chargers, and adjustable CV and CC LED ballast applications.