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  ON Semiconductor Electronic Components Datasheet  

CM3106 Datasheet

2 Amp Source / Sink Bus Termination Regulator

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CM3106
2 Amp Source/ Sink Bus
Termination Regulator
Product Description
The CM3106 is a sinking and sourcing regulator specifically
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 2 A,
ideal for DDRI memory systems, and 1.2 A for DDRII systems,
while maintaining a load regulation of 0.5% in either application.
The CM3106 provides over current and over temperature protection
which protects the device from excessive 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 an 8lead SOIC RoHScompliant
package.
Features
Ideal for DDRI and DDRII VTT Applications
Sinks and Sources 2.0A for DDRI
Over Current Protection
Over Temperature Protection
Integrated Power MOSFETs
Excellent Accuracy (0.5% Load Regulation)
Pin and Functionally Compatible with LP2995
8Lead SOIC Package
These Devices are PbFree and are RoHS Compliant
Applications
Single and Dual Channel DDR Memory Bus Termination
Active Termination Buses
Graphics Card Memory Termination
http://onsemi.com
8
1
SOIC8
SM SUFFIX
CASE 751
MARKING DIAGRAM
8
XXXXXX
AYWW
G
1
XXXXXX = CM310612SM
A = Assembly Location
Y = Year
WW = Work Week
G = PbFree Package
ORDERING INFORMATION
Device
Package
Shipping
CM310612SM SOIC8 2500/Tape & Reel
(PbFree)
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
© Semiconductor Components Industries, LLC, 2011
April, 2011 Rev. 3
1
Publication Order Number:
CM3106/D


  ON Semiconductor Electronic Components Datasheet  

CM3106 Datasheet

2 Amp Source / Sink Bus Termination Regulator

No Preview Available !

CM3106
SIMPLIFIED ELECTRICAL SCHEMATIC
AVIN
VDDQ
PVIN
Over Temp
Over Current
Reference
VREF
OUT IN
Buffer
Driver
VTT
VSENSE
Table 1. PIN DESCRIPTIONS
Lead(s) Name
Description
1 NC No Connect
2
GND
Ground
3 VSENSE Feedback
4
VREF
Reference Output, VDDQ/2
5
VDDQ
VDDQ Input
6
AVIN
Analog Input
7
PVIN
Power Input
8 VTT Output
GND
PACKAGE / PINOUT DIAGRAM
Top View
NC
GND
VSENSE
VREF
1
2
3
4
8 VTT
7 PVIN
6 AVIN
5 VDDQ
8Lead SOIC
SPECIFICATIONS
Table 2. ABSOLUTE MAXIMUM RATINGS
Parameter
Rating
Units
AVIN Operating Supply Voltage
VDDQ Input Voltage
Pin Voltages
VTT Output
Any other pins
7V
7V
V
7
7
ESD (HBM)
±2000
V
Storage Temperature Range
40 to +150
°C
Operating Temperature Range
Ambient
Junction
40 to +85 (Note 1)
40 to +150
°C
Power Dissipation (Note 1)
Internally Limited
W
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. These devices must be derated based on thermal resistance at elevated temperatures. The device packaged in an 8lead SOIC leadframe
must be derated at qJA = 151°C/W. qJA of the 8lead PSOP is 40°C/W.
http://onsemi.com
2


Part Number CM3106
Description 2 Amp Source / Sink Bus Termination Regulator
Maker ON Semiconductor
Total Page 9 Pages
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