ADP3203JRU-10-RL7 AD [Analog Devices], ADP3203JRU-10-RL7 Datasheet

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ADP3203JRU-10-RL7

Manufacturer Part Number
ADP3203JRU-10-RL7
Description
2-Phase IMVP-II & IMVP-III Core Controller for Mobile CPUs
Manufacturer
AD [Analog Devices]
Datasheet
a
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 ADOPT
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.
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.
REV. PrD 1/02
Preliminary Technical Data
FEATURES
Pin Selectable 1 or 2-Phase Operation
Backward Compatible to IMVP-II
Excellent Static and Dynamic Current Sharing
Superior Load Transient Response with ADOPT
Noise-Blanking for Speed and Stability
Synchronous Rectifier Control for Extended Battery
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
APPLICATIONS
IMVP II-III Core DC/DC Converters
Fixed Voltage Mobile CPU Core DC/DC Converters
Notebook/Laptop Power Supplies
Programmable Output Power Supplies
Optimal Positioning Technology
Life
Protection
PRELIMINARY TECHNICAL DATA
TM
TM
Core Controller for Mobile CPUs
One Technology Way, P.O. Box 9106, Norwood. MA 02062-9106, U.S.A.
Tel:781/329-4700
Fax:781/326-8703
DPRSLP
PWRGD
HYSSET
DSHIFT
BSHIFT
DSLP
VID2
BOM
VID4
VID3
VID1
VID0
SD
2-Phase IMVP-II & IMVP-III
13
11
4
8
12
10
9
1
2
3
5
6
7
ADP3203
FUNCTIONAL BLOCK DIAGRAM
ENABLE _UVLO MAIN BIAS
PWRGD BLANKER
SELECTOR
VID MUX &
SHIFT
EN
CORE
PM MODULE
5-BIT VID
VCC
CLIM
SS-HICCUP TIMER & OCP
GND
FIXED
DAC
19
REF
24
HYSTERESIS
SHIFT-MUX
&
SETTING
©ANALOG DEVICES, INC., 2002
COREGD MONITOR
VR
&
SR CONTROL
OVP & RVP
CURRENT
SPLITER
SENSE
PHASE
ADP3203
MUX
VR
www.analog.com
15
21
20
23
22
27
28
25
26
18
17
16
14
RAMP
REG
OUT2
OUT1
CS2
CS1
CS+
CS-
DRVLSD
COREFB
DACOUT
SS
CLAMP

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ADP3203JRU-10-RL7 Summary of contents

Page 1

PRELIMINARY TECHNICAL DATA a Preliminary Technical Data FEATURES Pin Selectable 1 or 2-Phase Operation Backward Compatible to IMVP-II Excellent Static and Dynamic Current Sharing Superior Load Transient Response with ADOPT Optimal Positioning Technology Noise-Blanking for Speed and Stability Synchronous Rectifier ...

Page 2

PRELIMINARY TECHNICAL DATA ADP3203–SPECIFICATIONS DSHIFT are open, BOM = H, DSLP = H, DPRSLP = L, unless otherwise noted) Current sunk by a pin has a positive sign, sourced by a pin has a negative sign. Negative sign is disregarded ...

Page 3

PRELIMINARY TECHNICAL DATA Parameter CORE COMPARATOR Input Offset Voltage (Ramp-Reg) Input Bias Current Output Voltage (OUT1,OUT2) 2 Propagation Delay Time 2 Rise and Fall Time 2 Noise Blanking Time CURRENT LIMIT COMPARATOR Input Offset Voltage Input Bias Current Propagation Delay ...

Page 4

... Reverse-Voltage Threshold Output Voltage (Open Drain Output) Output Current Model ADP3203JRU-0.85-RL ADP3203JRU-1.0-RL ADP3203JRU-1.0-RL7 ABSOLUTE MAXIMUM RATINGS* Input Supply Voltage (VCC) ............................. -0 UVLO Input Voltage ......................................... -0 All Other Inputs/Outputs ..................................... VCC + 0.3 V Operating Ambient Temperature Range ........... 0°C to +100°C Junction Temperature Range ............................ 0°C to +150°C ............................................................................... 98° ...

Page 5

PRELIMINARY TECHNICAL DATction Description Pin Mnemonic Function 1 HYSSET Hysteresis Set. This is an analog I/O pin whose output is a fixed voltage reference and whose input is a current that is programmed by an external resistance to ground. The ...

Page 6

PRELIMINARY TECHNICAL DATA ADP3203 Pin Mnemonic Function 12 PWRGD Power Good (active high). This is an open drain output pin which, via the assistance of an external pull-up resistor to the desired voltage, indicates that the core voltage is within ...

Page 7

PRELIMINARY TECHNICAL DATA Pin Mnemonic Function 21 OUT2 Output to Driver 2. This is a digital output pin which is used to command the state of the switched node via the driver. It should be connected to the IN pin ...

Page 8

PRELIMINARY TECHNICAL DATA ADP3203 MBRS130LT3 D6 MBRS130LT3 D5 Figure 1. Typical Application –8– REV. PrD ...

Page 9

PRELIMINARY TECHNICAL DATA THEORY OF OPERATION Overview Featuring a new proprietary single-or-dual-channel buck converter hysteretic control architecture developed by Analog Devices, Inc., the ADP3203 is the optimal core voltage control solution for both IMVP-II & -III generation microprocessors. The complex ...

Page 10

PRELIMINARY TECHNICAL DATA ADP3203 Over-Voltage Protection (OVP) & Reverse-Voltage Protection (RVP) The ADP3203 features a comprehensive redundantly moni- tored OVP and RVP implementation to protect the CPU core against an excessive or reverse voltage, e.g., as might be induced by ...

Page 11

PRELIMINARY TECHNICAL DATA near the MOSFETs will help. Even just small airflow can help tremendously. Paralleled MOSFETs to achieve a given resistance will help spread the heat external "antiparallel" schottky diode (across the bottom MOSFET) may help efficiency ...

Page 12

PRELIMINARY TECHNICAL DATA ADP3203 28-Lead Thin Shrink Small Outline Package (TSSOP) PIN 1 0.006 (0.15) 0.002 (0.05) SEATING OUTLINE DIMENSIONS Dimensions shown in inches and (mm). (RU-28) 0.386 (9.80) 0.378 (9.60 0.177 (4.50) 0.169 (4.30) 0.256 (6.50) 0.246 ...

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