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PRELIMINARY CALIFORNIA MICRO DEVICES PAC27A02 P/ACTIVE PRECISION VOLTAGE DIVIDER NETWORK FOR LINEAR TECHNOLOGY LTC1266/LT1431 Features Provides a complete Pentium regulator solution when combined with a Linear Technology LTC1266/LT1431 Power Supply Regulator Circuit Miniature SOT and SOIC packages Thin film tightly ratio matched resistors using P/Active technology Applications Linear Technology Pentium 54/55C Power Supply Regulator Refer to AP-202 Voltage Divider Application Note for further information. Product Description CAMDs P/Active 27A02 Precision Voltage Divider Network is designed to work with the Linear Technology LTC1266 Synchronous Regulator Controller and LT1431 Programmable Reference commonly used in Pentium P54/P55C power regulator designs. CAMDs P/Active technology provides precision ratio tracking over temperature/time required for proper voltage regulation by the Pentium processor. Absolute Tolerance (R) Ratio Tracking (0C TA 70C) (Voltage per resistor < 10 volts and power resistor <25mW) R1/R2 (R1+R2)/R3 Operating Temperature Range Power Rating/Resistor Storage Temperature Package Power Rating STANDARD SPECIFICATIONS 5% STANDARD VALUES Resistor (R) Value R1 R2 R3 1150 13 50 10 00 Package - Narrow Pins Style 4 8 P SOT-143 SOIC E R 1.0% 0.25% 0C to 70C 25mW @ 70C -65C to 150C 0.225W @ 70C M I L N I SCHEMATIC CONFIGURATION Y R A STANDARD PART ORDE RING INFORMATION Ordering Part Number Bags Tubes Tape & Reel PAC27A02S/T PAC27A02T/B PAC27A02T/R PAC27A02S/R Part Marking A02T PAC27A02S (c) 2000 California Micro Devices Corp. All rights reserved. 4/00 C0860400 215 Topaz Street, Milpitas, California 95035 Tel: (408) 263-3214 Fax: (408) 263-7846 www.calmicro.com 1 PRELIMINARY CALIFORNIA MICRO DEVICES Application Diagram PAC27A02 Switch Mode Regulator Application Diagram P 2 E R M I L Tel: (408) 263-3214 N I PRELIMINARY Y R A Linear Regulator (c)2000 California Micro Devices Corp. All rights reserved. 215 Topaz Street, Milpitas, California 95035 Fax: (408) 263-7846 www.calmicro.com 4/00 |
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