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RT3668EB - Single Channel PWM Controller

Download the RT3668EB datasheet PDF. This datasheet also covers the RT3669EB variant, as both devices belong to the same single channel pwm controller family and are provided as variant models within a single manufacturer datasheet.

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).

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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (RT3669EB-RichTek.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number RT3668EB
Manufacturer Richtek
File Size 1.91 MB
Description Single Channel PWM Controller
Datasheet download datasheet RT3668EB Datasheet

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Other Datasheets by Richtek

Part Number Description
RT3661AB Dual-Output PWM Controller
RT3662AC Dual-Output PWM Controller
RT3662AM Dual-Output PWM Controller
RT3662EB Single Channel PWM Controller
RT3663BC Dual-Output PWM Controller

Full PDF Text Transcription

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