MP54C

© 1997 SEMTECH CORP.

PENTIUM

®

PROCESSOR

VOLTAGE REGULATOR MODULE

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

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:

Processor variants (VRE or standard voltage)

(MP54C-E) or 5A (MP54C-5E)

Pentium

module

APPLICATIONS:

ELECTRICAL CHARACTERISTICS

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

Output Voltage

(1)

V

O

3.400

3.525

3.600

V

Output Current (MP54C-E)

I

O

0.01

5.8

7.5

A

Output Current (MP54C-5E)

I

O

0.01

5.0

A

Line Regulation

(1)

REG

(LINE)

0.015

0.2

%

Load Regulation

(1)

REG

(LOAD)

0.1

0.4

%

Dropout Voltage

V

D

1.1

1.2

V

Current Surge Limit (MP54C-E)

I

S

9.5

A

Current Surge Limit (MP54C-5E)

I

S

7.5

A

Quiescent Current

I

Q

12

16

mA

Temperature Coefficient

T

C

0.005

%/°C

Temperature Stability

T

S

0.5

%

RMS Output Noise

(2)

V

N

0.003

%V

O

Ripple Rejection Ratio

R

A

72

dB

Linear Airflow Requirements

(ambient temperature 55°C)

0.5

100

m/s

ft/min

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