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LTC1706-81 Datasheet(PDF) 1 Page - Linear Technology

Part No. LTC1706-81
Description  5-Bit Desktop VID Voltage Programmer
Download  8 Pages
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Maker  LINER [Linear Technology]
Homepage  http://www.linear.com
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LTC1706-81 Datasheet(HTML) 1 Page - Linear Technology

   
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LTC1706-81
APPLICATIO S
FEATURES
DESCRIPTIO
TYPICAL APPLICATION
5-Bit VID-Controlled High Current 4-Phase Application (Simplified Block Diagram)
5-Bit Desktop VID
Voltage Programmer
s
Programs Regulator Output Voltage Range from
1.3V to 2.05V in 50mV Steps and from 2.1V to 3.5V
in 100mV Steps (VRM 8.4)
s
Programs a Wide Range of Linear Technology
DC/DC Converters with a 0.8V Reference
s
Fully Compliant with the Intel Pentium
® Processor
Desktop VID Specification
s
±0.25% Accurate Output Voltage
s
Built-In 40k Pull-Up Resistors on VID Inputs
s
Available in MSOP-10 Package
The LTC
®1706-81 is a precision, digitally programmed,
resistive ladder which adjusts the output of any 0.8V
referenced regulator. Depending on the state of the five
VID inputs, an output voltage between 1.3V and 3.5V is
programmed in 50mV and 100mV increments.
The LTC1706-81 is designed specifically to program
an entire family of Linear Technology DC/DC converters in
full compliance with the Intel Desktop (VRM 8.4) VID
specification.
The LTC1706-81 programs the following Linear
Technology DC/DC converter products: LTC1622,
LTC1628, LTC1629, LTC1702, LTC1735, LTC1735-1,
LTC1772 and LTC1929. (Consult factory for future com-
patible DC/DC converter products.)
s
Intel Pentium II and III Processor Power Supply
s
AMD Athlon
TM Processor Power Supply
s
Workstations and Servers
s
Large Memory Array Supply
1706-81 TA01
L1
RSENSE1
VIN
VIN
4.5V TO 22V
VIN
4.5V TO 22V
LTC1629
INTVCC
VDIFFOUT
SGND
EAIN
COUT
VIN
TG1
SW1
BG1
PGND
+
VOUT
1.3V TO 3.5V
UP TO 70A
VID0
VID1
VID2
VID3
VID4
VCC
LTC1706-81
GND
SENSE
FB
FROM
µP
L2
RSENSE2
L3
RSENSE3
VIN
LTC1629
SGND
EAIN
VIN
TG1
SW1
BG1
PGND
L4
RSENSE4
TG2
SW2
BG2
TG2
SW2
BG2
, LTC and LT are registered trademarks of Linear Technology Corporation.
Pentium is a registered trademark of Intel Corporation.
AMD Athlon is a trademark of Advanced Micro Devices, Inc.


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