Description

The RT3602AE is an IMVP8 compliant CPU power

controller which includes three voltage rails : a 2/1 phase

synchronous Buck controller, the MAIN VR, a single phase

synchronous Buck controller, the auxiliary VR, and a

single phase synchronous Buck controller, the VCCSA

VR. The RT3602AE 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 GNAVPTM

topology, the RT3602AE also features a quick

response mechanism for optimized AVP performance

during load transient. The RT3602AE supports mode

transition function with various operating states. A serial

VID (SVID) interface is built in the RT3602AE to

communicate with Intel IMVP8 compliant CPU. The

RT3602AE 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

RT3602AE varies with VID, load and input voltage to further

enhance the efficiency even in CCM. Moreover, the GNAVPTM

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 RT3602AE integrates a high

accuracy ADC for platform setting functions, such as quick

response trigger level. Besides, the setting function also

supposes this two rails address exchange. The RT3602AE

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 RT3602AE is available in the WQFN-

48L 6x6 small foot print package.

Features

 Intel IMVP8 Serial VID Interface Compatible Power

Management States

 2/1 Phase (MAIN VR) + Single Phase (Auxiliary VR)

+ Single Phase (VCCSA VR) PWM Controller

 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

Multiple or 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

 RoHS Compliant and Halogen Free

Applications

 IMVP8 Intel Core Supply

 Notebook/ Desktop Computer/ Servers Multi-phase CPU

Core Supply

 AVP Step-Down Converter