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ADP3203JRU-085-RL

更新时间： 2024-01-08 05:31:08
品牌 Logo 应用领域
亚德诺 - ADI 控制器
页数 文件大小 规格书
12页 153K
描述
2-Phase IMVP-II & IMVP-III Core Controller for Mobile CPUs

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ADP3203JRU-085-RL 数据手册

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PRELIMINARY TECHNICAL DATA  
2-Phase IMVP-II & IMVP-III  
a
Core Controller for Mobile CPUs  
Preliminary Technical Data  
ADP3203  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
Pin Selectable 1 or 2-Phase Operation  
Backward Compatible to IMVP-II  
Excellent Static and Dynamic Current Sharing  
Superior Load Transient Response with ADOPTTM  
Optimal Positioning Technology  
Noise-Blanking for Speed and Stability  
Synchronous Rectifier Control for Extended Battery  
Life  
Cycle-by-Cycle Current Limiting  
Hiccup or Latched Overload Protection  
Transient-Glitch-Free Power Good  
Soft Start Eliminates Power-On In-Rush Current Surge  
Two-Level Over-Voltage and Reverse-Voltage  
Protection  
VCC  
24  
ADP3203  
1
HYSSET  
DSHIFT  
HYSTERESIS  
SETTING  
&
VR  
2
3
BSHIFT  
SHIFT-MUX  
21  
OUT2  
PHASE  
SPLITER  
20 OUT1  
CS2  
23  
CLIM  
22 CS1  
CURRENT  
SENSE  
MUX  
27  
CS+  
28 CS-  
EN  
RAMP  
25  
CORE  
APPLICATIONS  
26 REG  
IMVP II-III Core DC/DC Converters  
Fixed Voltage Mobile CPU Core DC/DC Converters  
Notebook/Laptop Power Supplies  
Programmable Output Power Supplies  
4
VID4  
5-BIT VID  
DAC  
&
FIXED  
REF  
5
6
7
VID3  
VID2  
DACOUT  
18  
VID1  
VID0  
8
VR  
GENERAL DESCRIPTION  
The ADP3203 is a 1 or 2-phase hysteretic peak current  
DC-DC buck converter controller dedicated to power a  
mobile processor's core. The optimized low voltage design is  
powered from the 3.3 V system supply and draws only  
10 µA maximum in shutdown. The nominal output voltage  
is set by a 5-bit VID code. To accommodate the transition  
time required by the newest processors for on-the-fly VID  
changes, the ADP3203 features high-speed operation to  
allow a minimized inductor size that results in the fastest  
change of current to the output. To further allow for the  
minimum number of output capacitors to be used, the  
ADP3203 features active voltage positioning with ADOPTTM  
optimal compensation to ensure a superior load transient  
response. The output signal interfaces with the ADP3415  
MOSFET driver that is optimized for high speed and high  
efficiency for driving both the top and bottom MOSFETs of  
the buck converter. The ADP3203 is capable of controlling  
the synchronous rectifier to extend battery lifetime in light  
load conditions.  
SD 13  
ENABLE _UVLO MAIN BIAS  
PWRGD BLANKER  
SR CONTROL  
15  
17  
DRVLSD  
COREFB  
12  
11  
PWRGD  
COREGD MONITOR  
DPRSLP  
DSLP  
16  
14  
SS-HICCUP TIMER & OCP  
SS  
VID MUX &  
SHIFT  
10  
9
SELECTOR  
CLAMP  
BOM  
OVP & RVP  
PM MODULE  
19  
GND  
REV. PrD 1/02  
Information furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assumed by Analog Devices for its  
use, nor for any infringements of patents or other rights of third parties  
which may result from its use. No license is granted by implication or  
otherwise under any patent or patent rights of Analog Devices.  
One Technology Way, P.O. Box 9106, Norwood. MA 02062-9106, U.S.A.  
Tel:781/329-4700  
Fax:781/326-8703  
www.analog.com  
©ANALOG DEVICES, INC., 2002  
1234567...12

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