The RTQ3700FD is fully digital PWM controllers for VR (Voltage Regulator) and can support up to four rails. The RTQ3700FD incorporates RICHTEK’s proprietary topology, a fully digital adaptive PID compensation loop, to achieve fast dynamic response and precise droop control. It is compatible with RICHTEK's DrMOS (Driver MOS) and/or SPS (Smart Power Stage) to offer a multiphase VR solution with low power consumption and low cost. The RTQ3700FD supports flexible phase assignment. The multiphase PWM firing sequence is programmable via the PMBus interface, which benefits the motherboard design and layout complexity. The RTQ3700FD adopts SPM (Smart Phase Management) technique with programmable current threshold to optimize system efficiency from light-load to full-load. The RTQ3700FD integrates an accurate ADC (analog-to-digital converter) for multiple signal telemetry, including system input voltage, input power, output current and temperature of each rail. An NVM (Non-Volatile Memory) is embedded on chip to store up to six groups of customized configurations. The RTQ3700FD also supports fault detection, including controller Undervoltage-Lockout (UVLO), VR output overvoltage protection (OVP), VR output undervoltage protection (UVP), and VR output overcurrent protection (OCP). The recommended junction temperature is -40°C to 125°C.
Applications
- Intel IMVP9.3 CPU CORE Power Supply
- Desktop and Laptop Computers
- AVP Buck Converters