%PDF-1.5
%
1 0 obj
<>
endobj
2 0 obj
<>stream
VR12.1 Intel Core Supply
VR12.1 Intel Core Supply
Notebook CPU Core Supply
AVP Step-Down Converter
VR12.1 Compatible Power Management States
VR12.1 Compatible Power Management States
Switching Frequency up to 1MHz
Serial VID Interface
Signal Phase PWM Controller
G-NAVPTM Topology
0.5% DAC Accuracy
Differential Remote Voltage Sensing
Built-in ADC for Platform Programming
System Thermal Compensated AVP
Diode Emulation Mode at Light Load Condition
Fast transient Response
VR Ready Indicator
Thermal Throttling
Current Monitor Output
Low Quiescent Power at PS3 and PS4
OVP
UVP
OCP
UVLO
NVP
Address Flip Function
DVID Improvement
Single-Phase Controller with Integrated Driver for VR12.1 Mobile CPU Core Power ,Supply
The RT8175A is a VR12.1 compliant CPU power controller which includes one ,voltage rails : a 1 phase synchronous buck controller, the CORE VR. The RT8175A ,has zero load-line function to support zero load-line application. The RT8175A ,adopts G-NAVPTM (Green Native AVP), which is Richtek's proprietary topology ,derived from finite DC gain compensator with current mode control, making it an ,easy to set the PWM controller, meeting all Intel CPU requirements of AVP ,(Active Voltage Positioning). Based on the G-NAVPTM topology, the RT8175A also ,features a quick response mechanism for optimized AVP performance during load ,transient. The RT8175A supports mode transition function with various operating ,states. A Serial VID (SVID) interface is built in the RT8175A to communicate ,with Intel VR12.1 compliant CPU. The RT8175A supports VID on-the-fly function ,with three different slew rates : Fast, Slow and Decay. By utilizing the G-NAVP,TM topology, the operating frequency of the RT8175A varies with VID, load and ,input voltage to further enhance the efficiency even in CCM. The built-in high ,accuracy DAC converts the SVID code ranging from 0.25V to 1.52V with 5mV per ,step, as shown in Table 1. The RT8175A integrates a high accuracy ADC for ,platform setting functions, such as quick response or over current level. The ,RT8175A provides VR ready output signals. It also features complete fault ,protection functions including Over Voltage (OV), Under Voltage (UV), Negative ,Voltage (NV), Over Current (OC) and Under Voltage Lockout (UVLO). The RT8175A ,is available in a WQFN-32L 4x4 small foot print package.
endstream
endobj
3 0 obj
<>
endobj
4 0 obj
<>stream
h{rȱ>~vo=揄1Ciښ1ŕwqC$)zhr+?*
41bL
N|u軋WF]Խxywϝԩ]ϧޜ}+ս{muG<̩~cg~WWW:7z{{lp7:uWϾxcnxswUnrLW?.
՟Ϟ_A0!Ö'جS [`uQ^VL9ʍU>tW7}
\1D䏫g0^w]jiCoH_` Чz\Okk7zyy#vRn㒣q\gMظ?\?mMÇ
=v٬۾t>vǧMpV6{C>^?!rnck0RSlxyMP5Rk=,yVl\6@I@=ĖZ)o?@km6au[c}v]>xy
!<)N<SMwFyG#oiw~H"YEv=:涫Fvs<(?w/Ol6Gl0iu5o1}~=?
6<