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Richtek - Dual Single-Phase PWM Controller

Numéro de référence RT8165A
Description Dual Single-Phase PWM Controller
Fabricant Richtek 
Logo Richtek 





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RT8165A fiche technique
RT8165A
Dual Single-Phase PWM Controller for CPU Core/GFX
Power Supply
General Description
The RT8165A is a dual single-phase synchronous Buck
PWM controller with integrated gate drivers, compliant
with Intel VR12/IMVP7 specification. A serial VID (SVID)
interface is built-in in the RT8165A to communicate with
Intel VR12/IMVP7 compliant CPU. The integrated
differential remote output voltage sensing function and
built-in high accuracy DAC achieve accurate output voltage
regulation.
The RT8165A supports VR12/ IMVP7 compatible power
management states and VID on-the-fly function. The
RT8165A operates in two power management states
including DEM in PS2 and Forced-CCM in PS1/PS0.
Richtek's proprietary G-NAVPTM (Green Native AVP) makes
AVP (Active Voltage Positioning) design easier and more
robust. By utilizing the G-NAVPTM topology, DEM and CCM
efficiency can be improved.
The RT8165A integrates high accuracy ADC for platform
setting functions, such as no-load offset or over current
level. Individual VR ready output signals are provided for
both CORE VR and GFX VR. The IC also features complete
fault protection functions, including over voltage, under
voltage, negative voltage, over current and under voltage
lockout. The RT8165A is available in a WQFN-48L 6x6
small foot print package.
Marking Information
RT8165AGQW
RT8165A
GQW
YMDNN
RT8165AGQW : Product Number
YMDNN : Date Code
RT8165AZQW
RT8165A
ZQW
YMDNN
RT8165AZQW : Product Number
YMDNN : Date Code
Features
z G-NAVPTM (Green Native Active Voltage Positioning)
Topology
z Dual Output Controller with Two Built-in Gate
Drivers
z Serial VID Interface
z 0.5% DAC Accuracy
z Differential Remote Output Voltage Sensing
z Built-in ADC for Platform Programming
z Diode Emulation Mode (DEM) at Light Load
Condition
z Droop Enable/Disable
z Fast Transient Response
z VR12/IMVP7 Compatible Power Management
States
z VR Ready Indicator
z Thermal Throttling Indicator
z Current Monitor Output
z Switching Frequency up to 1MHz per Phase
z Protection : OVP, UVP, NVP, OCP, UVLO
z Small 48-Lead WQFN Package
z RoHS Compliant and Halogen Free
Applications
z VR12 / IMVP7 Intel CPU Core Supply
z AVP Step-down Converter
z Notebook/ Netbook/ Desktop Computer CPU Core
Supply
Ordering Information
RT8165A
Package Type
QW : WQFN-48L 6x6 (W-Type)
Lead Plating System
G : Green (Halogen Free and Pb Free)
Z : ECO (Ecological Element, Halogen
Free)
Note :
Richtek Green products are :
` RoHS compliant and compatible with the current
requirements of IPC/JEDEC J-STD-020.
` Suitable for use in SnPb or Pb-free soldering processes.
DS8165A-00 March 2011
www.richtek.com
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