RT8813DGQW RT8813D 4E= Marking 4E= IC

The RT8813DGQW RT8813D 4E= Marking 4E= IC PWM Controller IC is a high-performance 4-phase synchronous buck controller designed for Intel CPU and GPU core voltage regulation. It offers excellent transient response, high conversion efficiency, and stable operation for demanding power management applications.

This controller provides programmable phase interleaving to reduce output ripple and improve thermal balance across all phases. It integrates advanced features such as Power Good indication, Over-Voltage Protection (OVP), Under-Voltage Protection (UVP), Over-Current Protection (OCP), and Under-Voltage Lockout (UVLO).

With its compact QFN package and marking code “4E=”, the RT8813D is optimized for use in motherboards, VRM modules, desktop and notebook power systems, where efficiency and reliability are critical.

Technical Summary:

• Model: RT8813DGQW RT8813D 4E= Marking 4E= IC
• Marking Code: 4E=
• Type: 4-Phase PWM Controller IC
• Function: CPU/GPU core voltage regulation
• Features: Multi-phase control, Power Good signal, high efficiency
• Protection: OVP, UVP, OCP, UVLO
• Package: QFN
• Applications: Intel CPU power regulation, VRMs, motherboards, graphic cards