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RT3669EA - Single Channel PWM Controller

Description

The RT3669EA is a single channel PWM controller with 1 integrated driver 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.

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Datasheet Details

Part number RT3669EA
Manufacturer Richtek
File Size 1.89 MB
Description Single Channel PWM Controller
Datasheet download datasheet RT3669EA Datasheet

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Full PDF Text Transcription

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RT3669EA Single Channel PWM Controller with 1 Integrated Driver and 1 LDO Regulator for AMD SVI2 GFX and FCH Power Supply General Description The RT3669EA is a single channel PWM controller with 1 integrated driver 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 RT3669EA 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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