RT3662EB PDF预览

RT3662EB

更新时间: 2025-08-04 19:59:47
品牌 Logo 应用领域
立锜 - RICHTEK /
页数 文件大小 规格书
28页 1812K
描述
暂无描述

RT3662EB 技术参数

Status:ActiveVID Table Support:SVI2
Number of Phases:2Vcc (typ) (V):5
Vin (min) (V):4.5Vin (max) (V):26
Accuracy (Vout>=1V) (+/- %):0.5Freq (typ) (kHz):400
Built-in DAC Generator:YesNumber of MOSFET Drivers:2
Features:Diode Emulation Mode;Fast Transient Response;G-NAVP Control;OCP;OVP;Power Good;UVPPackage Type:WQFN4x4-32

RT3662EB 数据手册

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RT3662EB  
Single Channel PWM Controller with 2 Integrated Drivers for  
AMD SVI2 GPU CORE Power Supply  
General Description  
Features  
2/1-Phase (VDDC) PWM Controller  
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.  
2 Embedded MOSFET Drivers  
TM  
G-NAVP 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 V  
Fast Transient Response  
Power Good Indicator  
, I  
Reporting  
OUT OUT  
Thermal Indicator (VRHOT_L)  
OVP, UVP and UVLO  
Over Current Protection  
Applications  
AMD SVI2 GPU Core Power  
Laptop Computer  
Marking Information  
3B= : Product Code  
YMDNN : Date Code  
3B=YM  
DNN  
Simplified Application Circuit  
RT3662EB  
VRHOT_L  
PHASE1  
MOSFET  
MOSFET  
V
VDDC  
SVC  
To GPU  
SVD  
PHASE2  
SVT  
Copyright © 2019 Richtek Technology Corporation. All rights reserved.  
is a registered trademark of Richtek Technology Corporation.  
DS3662EB-04 August 2019  
www.richtek.com  
1

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