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MP55C-3.3-2.7 Datasheet(PDF) 1 Page - Semtech Corporation |
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MP55C-3.3-2.7 Datasheet(HTML) 1 Page - Semtech Corporation |
1 / 3 page MP55C © 1997 SEMTECH CORP. PENTIUM ® PROCESSOR P55C VOLTAGE REGULATOR MODULE October 27, 1997 652 MITCHELL ROAD NEWBURY PARK CA 91320 Pentium is a registered trademark of Intel Corporation. AMD5 K86 is a trademark of Advanced Micro Devices. 6x86 is a trademark of Cyrix. DESCRIPTION: The MP54C/MP55C series of power modules are low noise (no EMI), economical linear DC:DC converters with an integral connector conforming to Intel Corpora- tion’s Voltage Regulator Module 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 MP55C is designed to power split voltage plane microproces- sors requiring 3.3V V I/O and 2.xV VCORE. The VI/O is al- ways supplied directly from a 3.3V input; either the main system power supply or a low dropout regulator on the motherboard. The CPU core can be supplied either from the 3.3V main supply to reduce heat dissi- pation (MP55C-3.3) or the 5V main power supply (MP55C-5). The MP55C-3.3 still requires a few mA of 5V power for control circuitry. The MP55C-3.3 will not be available for CPU core voltages higher than 2.8V. Please contact Semtech for availability. FEATURES: • Integral VRM header connector • Input voltage 5V ± 5% • 2.8 ± 0.1V output for CPU core power • 3.3V passes through the I/O power plane • Maximum output current 6A • Input power voltage: 5V ± 5% for MP55C-5 or 3.3V for MP55C-3.3 • Low noise, no EMI APPLICATIONS: • Pentium® Processor P55C, Cyrix 6x86 and AMD5 K86 power supplies ELECTRICAL CHARACTERISTICS PARAMETER SYMBOL MIN TYP MAX UNITS Output Voltage (1) 2.8V version V O 2.7 2.8 3.0 V 2.7V version 2.6 2.7 2.8 2.5V version 2.4 2.5 2.6 Output Current I O 6.0 A Line Regulation (1) REG (LINE) 0.015 0.2 % Load Regulation (1) REG (LOAD) 0.1 0.4 % Dropout voltage (MP55C-5) (MP55C-3.3) V D 1.2 0.40 1.3 V Current Surge Limit 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 Input (V) Output (V) MP55C-5-2.8 5.0 2.8 MP55C-5-2.5 5.0 2.5 MP55C-3.3-2.8 3.3 2.8 MP55C-3.3-2.7 3.3 2.7 MP55C-3.3-2.5 3.3 2.5 TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com |
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