
MP54C
1997 SEMTECH CORP.
PENTIUM
VOLTAGE REGULATOR MODULE
PROCESSOR
October 27, 1997
652 MITCHELL ROAD NEWBURY PARK CA 91320
Pentium is a registered trademark of Intel Corporation
DESCRIPTION:
The MP54C/MP55C series of power modules are low
noise (no EMI), economical 25W (nominal) linear
DC:DC converters with an integral connector con-
forming to Intel Corporation’s Voltage Regulator Mod-
ule specification for the Pentium
Processor.
Outstanding features include internal current limiting
and thermal shutdown, providing full device protection
against load faults and thermal overstress. The
MP54C series is designed to supply power for the
Pentium Processor P54C & P54CS and associated
chip sets. With a tightly controlled output voltage,
nominally 3.525V, the MP54C meets all requirements
for powering VRE specification processors.
The MP54C-5E is a reduced cost version offering a
maximum current of 5A. For P55C processors,
please see Semtech’s datasheet, MP55C.
FEATURES:
Integral VRM header connector
Input voltage 5V ± 5%
Fixed output voltage 3.525V for all Pentium
Processor variants (VRE or standard voltage)
Steady state output current 5.8A/7.5A peak
(MP54C-E) or 5A (MP54C-5E)
Low dropout voltage
Fast transient response
Low noise, no EMI
Fully qualified by Intel Corporation for Intel
Pentium
Processor P54C & P54CS 90 - 200MHz
module
APPLICATIONS:
Intel Pentium
Power Supply
ELECTRICAL CHARACTERISTICS
PARAMETER
Output Voltage
(1)
Output Current (MP54C-E)
Output Current (MP54C-5E)
Line Regulation
(1)
Load Regulation
(1)
Dropout Voltage
Current Surge Limit (MP54C-E)
Current Surge Limit (MP54C-5E)
Quiescent Current
Temperature Coefficient
Temperature Stability
RMS Output Noise
(2)
Ripple Rejection Ratio
Linear Airflow Requirements
(ambient temperature 55°C)
SYMBOL
V
O
I
O
I
O
REG
(LINE)
REG
(LOAD)
V
D
I
S
I
S
I
Q
T
C
T
S
V
N
R
A
MIN
3.400
0.01
0.01
TYP
3.525
5.8
MAX
3.600
7.5
5.0
0.2
0.4
1.2
UNITS
V
A
A
%
%
V
A
A
mA
%/°C
%
%V
O
dB
m/s
ft/min
0.015
0.1
1.1
9.5
7.5
12
0.005
0.5
0.003
72
16
0.5
100
NOTES:
(1) Low duty cycle pulse testing with Kelvin connections required.
(2)
Bandwidth of 10 Hz to 10 kHz.
ORDERING INFORMATION:
DEVICE
Max Current (A)
Output Voltage (V)
MP54C-E
7.5A
3.525
MP54C-5E
5.0A
3.525
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com