RT3607CE Datasheet, PDF (1/69 Pages) Richtek Technology Corporation – Multi-Phase PWM Controller for CPU Core Power Supply

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RT3607CE
Multi-Phase PWM Controller for CPU Core Power Supply
General Description
The RT3607CE is an IMVP8 compliant CPU power
controller which includes two voltage rails : a 4/3/2/1 phase
synchronous Buck controller, the CORE VR, a 3/2/1 phase
synchronous Buck controller, the AXG VR. The RT3607CE
adopts G-NAVP^TM (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-NAVP^TM
topology, the RT3607CE also features a quick response
mechanism for optimized AVP performance during load
transient. The RT3607CE supports mode transition
function with various operating states. A serial VID (SVID)
interface is built in the RT3607CE to communicate with
Intel IMVP8 compliant CPU. The RT3607CE supports VID
on-the-fly function with three different slew rates : Fast,
Slow and Decay. By utilizing the G-NAVP^TM topology, the
operating frequency of the RT3607CE varies with VID, load
and input voltage to further enhance the efficiency even in
CCM. Moreover, the G-NAVP^TM with CCRCOT (Constant
Current Ripple COT) technology provides superior output
voltage ripple over the entire input/output range. The built-
in high accuracy DAC converts the SVID code ranging
from 0.25V to 1.52V with 5mV per step. The RT3607CE
integrates a high accuracy ADC for platform setting
functions, such as quick response trigger level or over-
current level. Besides, the setting function also supposes
this two rails address exchange. The RT3607CE 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 RT3607CE is available in the WQFN-56L
6x6 small foot print package.
Features
 Intel IMVP8 Serial VID Interface Compatible Power
Management States
 4/3/2/1 Phase (Core) + 3/2/1 Phase (AXG) PWM
Controller
 G-NAVP^TM (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
 Notebook/ Desktop Computer Multi-phase CPU Core
Supply
 AVP Step-Down Converter
Simplified Application Circuit
To PCH
To CPU
RT3607CE
PWM1
PGOOD
VR_HOT
VCLK
VDIO
ALERT
PWM2
PWM3
PWM4
PWMA1
PWMA2
PWMA3
Driver
Driver
Driver
Driver
Driver
Driver
Driver
MOSFET
MOSFET
MOSFET
MOSFET
MOSFET
MOSFET
MOSFET
V_CORE
V_AXG
Copyright ©2016 Richtek Technology Corporation. All rights reserved.
DS3607CE-01 June 2016
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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