RT8237C RT8237CZQW Z3= Marking Z3= IC QFN10

The RT8237C RT8237CZQW Z3= Marking Z3= IC QFN10 series, including RT8237CZQW (marking “Z3=”), is a high-efficiency single-phase synchronous buck PWM controller designed for notebook computer CPU-core, chipset, DRAM and low-voltage supply rails as low as 0.7 V

Usage / Compatibility Notes:

• When replacing this IC on a motherboard, ensure the package is indeed the 10-pin WDFN (3×3) QFN style and the marking “Z3=” matches.
• Check that the VIN of the board falls within 4.5 V to 26 V (for this controller) and that the target output voltage is within the controller’s adjustable range (via external FB resistors) down to ~0.7 V.

High-efficiency RT8237C RT8237CZQW Z3= Marking Z3=(also sold as RT8237CZQW, marking code “Z3=”) 10-pin QFN buck-PWM controller IC by Richtek Technology Corporation — for notebook CPU/chipset power rails (VIN up to 26 V, VOUT down to 0.7 V).