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RT3662AC PDF Datasheet ( 特性, スペック, ピン接続図 )

部品番号 RT3662AC
部品説明 Dual-Output PWM Controller
メーカ RichTek
ロゴ RichTek ロゴ 

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RT3662AC Datasheet, RT3662AC PDF,ピン配置, 機能
RT3662AC
Dual-Output PWM Controller with 3 Integrated Drivers for
AMD SVI2 Mobile CPU Power Supply
General Description
RT3662AC is a dual-output PWM controller with 3
integrated drivers, and it is compliant with AMD SVI2
Voltage Regulator Specification to support both CPU
core (VDD) and Northbridge portion of CPU (VDDNB).
The RT3662AC 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) VDD/VDDNB
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
VDD/VDDNB domains. The RT3662AC can operate in
diode emulation mode to enhance the light load
efficiency. And it provides the current gain adjustment
capability by pin setting. RT3662AC provides power
good indication, thermal indication (VRHOT_L), and it
features complete fault protection functions including
over current, over voltage and under voltage.
Marking Information
RT3662AC
GQW
YMDNN
RT3662ACGQW : Product Number
YMDNN : Date Code
Features
2/1-Phase (VDD) + 1/0-Phase (VDDNB) PWM
Controller
3 Embedded MOSFET Drivers
G-NAVPTM 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 VOUT, IOUT Reporting
Fast Transient Response
Power Good Indicator
Thermal Indicator (VRHOT_L)
OVP, UVP and UVLO
Over Current Protection
Applications
AMD SVI2 Mobile CPU
Laptop Computer
Simplified Application Circuit
To CPU
RT3662AC
VRHOT_L
PHASE1
SVC
SVD
PHASE2
SVT
PHASE_NB
MOSFET
MOSFET
MOSFET
VVDD
VVDDNB
Copyright © 2016 Richtek Technology Corporation. All rights reserved.
DS3662AC-01 April 2016
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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