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RT3668EB Datasheet Single Channel Pwm Controller

Manufacturer: Richtek

Overview: RT3668EB Single Channel PWM Controller with 2 Integrated Drivers and 1 LDO Regulator for AMD SVI2 GFX and FCH Power Supply.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The RT3668EB is a single channel PWM controller with 2 integrated drivers and 1 LDO regulator, it is compliant with AMD SVI2 Voltage Regulator Specification to support FP4 GFX power (VDDCR_GFX) and FCH power (VDDCR_FCH_S5).

The RT3668EB

Key Features

  • CCRCOT (Constant Current Ripple Constant On-Time) with G-NAVP (Green-Native AVP), which is Richtek's proprietary topology. G-NAVP makes it an easy setting controller to meet all AMD AVP (Adaptive Voltage Positioning) GFX requirements. The droop is easily programmed by setting the DC gain of the error amplifier. With proper compensation, the load transient response can achieve optimized AVP performance. The controller also uses the interface to issue VOTF Complete and to send digitally encoded vo.

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