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MP54C Datasheet(PDF) 2 Page - Semtech Corporation

Part No. MP54C
Description  PENTIUM PROCESSOR VOLTAGE REGULATOR MODULE
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Maker  SEMTECH [Semtech Corporation]
Homepage  http://www.semtech.com
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MP54C Datasheet(HTML) 2 Page - Semtech Corporation

   
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MP54C
© 1997 SEMTECH CORP.
PENTIUM
®
PROCESSOR
VOLTAGE REGULATOR MODULE
October 27, 1997
652 MITCHELL ROAD NEWBURY PARK CA 91320
INPUT AND OUTPUT CONNECTIONS
Pin No.
Row A
Row B
Pin No.
1
V
SS
V
SS
1
2
V
SS
V
SS
2
3
ND
V
I/O
3
4
V
I/O
V
I/O
4
5
+3.3V
+3.3V
5
6
+3.3V
+3.3V
6
7
V
CORE
V
CORE
7
8
V
CORE
V
CORE
8
9
V
SS
V
CORE
9
10
V
CORE
V
CORE
10
11
PWR GOOD
UPVRM#
11
12
SENSE
DISABLE
12
13
V
SS
V
SS
13
14
+5.0V
+5.0V
14
15
+5.0V
+5.0V
15
A
B
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
VRM
PCB
End view of VRM connector
(viewed from motherboard side)
Note: The functions of DISABLE, SENSE, PWR_GOOD & UPVRM# are optional features specified by Intel. These
are not included in the standard Voltage Regulator Module.
VOLTAGE REGULATOR MODULE CONNECTOR PIN REFERENCE
Pin Name
I/O
Function
Notes
+3.3V
Input
+3.3V Supply
Not connected
+5.0V
Input
+5.0V Supply
Input
V
CORE
Output
Voltage Regulator Module Output
Output
V
I/O
Output
CPU I/O power connection. Allows for split voltage plane for I/O
circuitry.
Tied to output
V
SS
Input
Ground Reference
Ground
DISABLE
Input
When driven high, this input will disable the Voltage Regulator Module
output and the output of the module will float.
Not connected
PWR
GOOD
Output
Power Good is driven low when the VRM output is not within valid
levels.
Not connected
SENSE
Input
Sense is provided for the regulator to correct for voltage drops across
the connector and motherboard powerplane.
Not connected
UPVRM#
Input
This signal indicates to future upgrade processors that the proper
module is installed. This signal must be tied HIGH for this module.
Tied to output.
ND
This pin may be used as a +12V supply input, otherwise it should be
left as a no connect (NC)
Not connected


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