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PDF CM3106 Data sheet ( Hoja de datos )
| Número de pieza | CM3106 | |
| Descripción | 2 Amp Source/ Sink Bus Termination Regulator | |
| Fabricantes | California Micro Devices | |
| Logotipo |  |
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CM3106www.DataSheet4U.com
2 Amp Source/ Sink Bus Termination Regulator
Features
• Ideal for DDR-I and DDR-II VTT applications
• Sinks and sources 2.0A for DDR-I
• Over current protection
• Over temperature protection
• Integrated power MOSFETs
• Excellent accuracy (0.5% load regulation)
• Pin and functionally compatible with LP2995
• 8-lead SOIC and PSOP packages
• Lead-free versions available
Applications
• Single and Dual Channel DDR Memory
Bus Termination
• Active Termination Buses
• Graphics Card Memory Termination
Product Description
The CM3106 is a sinking and sourcing regulator specif-
ically designed for providing power to DDR memory
terminating resistors and companion chip set VTT
power. The output voltage accurately tracks VDDQ/2.
The CM3106 can source and sink current up to 2A,
ideal for DDR-I memory systems, and 1.2A for DDR-II
systems, while maintaining a load regulation of 0.5% in
either application.
The CM3106 provides over current and over tempera-
ture protection which protects the device from exces-
sive heating due to high current and high temperature.
A shutdown capability using an external transistor
reduces power consumption and provides a high
impedance output.
The CM3106 is housed in both 8-lead SOIC and PSOP
packages and is available with optional lead-free finish-
ing.
Simplified Electrical Schematic
AVIN
VDDQ
PVIN
Over Temp
Over Current
Reference
VREF
OUT
Buffer
IN
Driver
GND
VTT
VSENSE
© 2004 California Micro Devices Corp. All rights reserved.
02/02/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112
L Tel: 408.263.3214 L Fax: 408.263.7846 L www.calmicro.com
1
1 page  
Performance Information (cont’d)
Typical DC Characteristics (nominal conditions unless otherwise specified)
CM3106www.DataSheet4U.com
Figure 5. Over Current Limit (Sink)
Figure 7. Over Current Limit (Source)
Figure 6. AVIN Supply Current with Supply Voltage
© 2004 California Micro Devices Corp. All rights reserved.
02/02/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112
L Tel: 408.263.3214 L Fax: 408.263.7846 L www.calmicro.com
5
5 Page 
Mechanical Details
PSOP-8 Mechanical Specifications
Dimensions for CM3106 devices packaged in 8-pin
PSOP packages with an intagrated heatslug are pre-
sented below.
PACKAGE DIMENSIONS
Package
PSOP-8
Leads
8
Dimensions
Millimeters
Min Max
Inches
Min Max
A
1.30
1.62
0.051 0.064
A1
0.03
0.10
0.001 0.004
B
0.33
0.51
0.013 0.020
C
0.18
0.25
0.007 0.010
D
4.83
5.00
0.190 0.197
E
3.81
3.99
0.150 0.157
e
1.02
1.52
0.040 0.060
H
5.79
6.20
0.228 0.244
L
0.41
1.27
0.016 0.050
x**
3.30
3.81
0.130 0.150
y**
2.29
2.79
0.090 0.110
# per tube
100 pieces*
# per tape
and reel
2500 pieces
Controlling dimension: inches
* This is an approximate number which may vary.
** Centered on package centerline.
CM3106www.DataSheet4U.com
Mechanical Package Diagrams
TOP VIEW
D
87 65
H
E
Pin 1
Marking
12 34
BOTTOM VIEW
D
12 34
Heat Slug
x
Hy
x/2 y/2
E
8765
SIDE VIEW
A
SEATING
PLANE
B
e
END VIEW
C
A1
L
Package Dimensions for PSOP-8
© 2004 California Micro Devices Corp. All rights reserved.
02/02/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112
L Tel: 408.263.3214 L Fax: 408.263.7846 L www.calmicro.com
11
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet CM3106.PDF ] | |
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