General Description
The RT3624BE is a synchronous buck controller which
supports 2 output rails and can fully meet Intel IMVP9.1
requirements. The RT3624BE 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 RT3624BE features a new
generation of quick response mechanism (Adaptive
Quick Response, AQR) to optimize AVP performance
during load transient and reduce output capacitors. The
RT3624BE integrates a high accuracy ADC for platform
and function settings, such as ICCMAX, switching
frequency, over-current threshold or AQR trigger level.
The RT3624BE provides VR Ready and thermal
indicators. It also features complete fault protection
functions including over-voltage (OV), under-voltage
(UV), over-current (OC) and under-voltage lockout
(UVLO).

Applications
IMVP9.1 Intel CORE/AXG Supply
Desktop and Notebook Computer
AVP Step-Down Converter

Features
Intel IMVP9.1 Compliant
4/3/2/1 Phase (CORE VR) + 2/1 Phase (AXG VR)
PWM Controller
G-NAVPTM (Green Native Adaptive Voltage
Positioning)Topology
0.5% DACAccuracy
Differential Remote Voltage Sensing
Built-in ADC for Platform Programming and
Reporting
Accurate CurrentBalance
Diode Emulation Mode at Light Load Condition
Fast Transient Response-Adaptive Quick
Response (AQR)
VR Ready Indicator
OVP,OCP, UVP with Flag
Switching Frequency Range Setting
DVID Enhancement
Acoustic Noise Suppression
Zero Load-line
Rail Disable
Support Phase Doubler RT9637 for CORE rail Up
to 6-Phase Operation (optional)
Support SPS Application (optional)
Soldering Good Detection
RT3624BE : Support Address 00 and 01
Small 52-Lead WQFN Package