General Description
The RT3662EB is a single channel PWM controller with
2 integrated drivers, and it is compliant with AMD SVI2
Voltage Regulator Specification to support GPU power
VDDC). The RT3662EB 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)
VDDC 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 voltage and current values for
the VDDC domains. The RT3662EB can operate in
diode emulation mode to enhance the light load
efficiency. And it provides the current gain adjustment
capability by pin setting. The RT3662EB provides
power good indication, thermal indication (VRHOT_L),
and it features complete fault protection functions
including, over current, over voltage and under voltage.

Features
 2/1-Phase (VDDC) PWM Controller
 2 Embedded MOSFET Drivers
 G-NAVPTM Topology
 Support Dynamic Load-Line and Zero Load-Line
 Diode Emulation Mode at Light Load Condition
 SVI2 Interface to Comply with AMD Power
Management Protocol
 Adjustable Current Gain Capability
 DVID Enhancement
 0.5% DAC Accuracy
 Differential Remote Voltage Sensing
 Build-in ADC for Pin Setting Programming,
Thermal Indication and VOUT, IOUT Reporting
 Fast Transient Response
 Power Good Indicator
 Thermal Indicator (VRHOT_L)
 OVP, UVP and UVLO
 Over Current Protection

Applications
 AMD SVI2 GPU Core Power
 Laptop Computer