PRELIMINARY
CALIFORNIA MICRO DEVICES
PAC27A02
P/ACTIVE PRECISION VOLTAGE DIVIDER NETWORK
FOR LINEAR TECHNOLOGY LTC1266/LT1431
Features
聲 Provides a complete Pentium regulator solution when
combined with a Linear Technology LTC1266/LT1431
Power Supply Regulator Circuit
聲 Miniature SOT and SOIC packages
聲 Thin film tightly ratio matched resistors using
P/Active technology
Applications
聲 Linear Technology Pentium 54/55C Power
Supply Regulator
Refer to AP-202 Voltage Divider Application Note for
further information.
Product Description
CAMD聮s 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. CAMD聮s P/Active technology provides precision ratio tracking over temperature/time required for proper
voltage regulation by the Pentium processor.
Absolute Tolerance (R)
Ratio Tracking (0擄C
鈮?/div>
T
A
鈮?/div>
70擄C)
(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
鹵5%
STANDARD
VALUES
Resistor (R)
Value
R1
R2
R3
1150
13 50
10 00
STANDARD PART ORDE RING INFORMATION
Package - Narrow
Ordering Part Number
Bags
Pins
Style
Tubes
Tape & Reel
4
8
SOT-143
SOIC
-
PAC27A02S/T
PAC27A02T/B
-
PAC27A02T/R
PAC27A02S/R
E
R
P
鹵1.0%
鹵0.25%
0擄C to 70擄C
25mW @ 70擄C
-65擄C to 150擄C
0.225W @ 70擄C
M
I
L
N
I
SCHEMATIC CONFIGURATION
Y
R
A
Part Marking
A02T
PAC27A02S
漏 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
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