General Description
The RT3607BC is an IMVP8 compliant CPU power
controller which includes two voltage rails : a 4/3/2 phase
synchronous Buck controller, the CORE VR and a 2 phase
synchronous Buck controller, the AXG VR. The RT3607BC
adopts G-NAVPTM (Green Native AVP) which is Richtek's
proprietary topology derived from finite DC gain of EA
amplifier with current mode control, making it easy to set
the droop to meet all Intel CPU requirements of AVP
(Adaptive Voltage Positioning). Based on the G-NAVPTM
topology, the RT3607BC also features a quick response
mechanism for optimized AVP performance during load
transient. The RT3607BC supports mode transition
function with various operating states. A serial VID (SVID)
interface is built in the RT3607BC to communicate with
Intel IMVP8 compliant CPU. The RT3607BC supports VID
on-the-fly function with three different slew rates : Fast,
Slow and Decay. By utilizing the G-NAVPTM topology, the
operating frequency of the RT3607BC varies with VID, load
and input voltage to further enhance the efficiency even in
CCM. Moreover, the G-NAVPTM with CCRCOT (Constant
Current Ripple COT) technology provides superior output
voltage ripple over the entire input/output range. The builtin high accuracy DAC converts the SVID code ranging
from 0.25V to 1.52V with 5mV per step. The RT3607BC
integrates a high accuracy ADC for platform setting
functions, such as quick response trigger level or overcurrent level. Besides, the setting function also supports
this two rails address exchange. The RT3607BC provides
VR ready output signals. It also features complete fault
protection functions including over-voltage (OV), negative
voltage (NV), over-current (OC) and under-voltage lockout
(UVLO). The RT3607BC is available in the WQFN-60L
7x7 small foot print package
Features
 Intel IMVP8 Serial VID Interface Compatible Power
Management States
 4/3/2 Phase (CORE VR) + 2 Phase (AXG VR) PWM
Controller
 3 Embedded MOSFET Drivers at the CORE VR
 G-NAVPTM (Green Native Adaptive Voltage
Positioning) Topology
 0.5% DAC Accuracy
 Differential Remote Voltage Sensing
 Built-in ADC for Platform Programming
 Accurate Current Balance
 System Thermal Compensated AVP
 Diode Emulation Mode at Light Load Condition for
Single Phase Operation
 Fast Transient Response
 VR Ready Indicator
 Thermal Throttling
 Current Monitor Output
 OVP, OCP, NVP, UVLO
 Slew Rate Setting/Address Flip Function
 Rail Address Flexibility
 DVID Enhancement
Applications
 IMVP8 Intel CORE Supply
 Desktop Computer/ Servers Multi-phase CPU CORE
Supply
 AVP Step-Down Converter