CM3202(2011_03) Просмотр технического описания (PDF) - ON Semiconductor
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CM3202 Datasheet PDF : 11 Pages
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CM3202-02
DDR VDDQ and VTT
Termination Voltage
Regulator
Product Description
The CM3202−02 is a dual−output low noise linear regulator
designed to meet SSTL−2 and SSTL−3 specifications for
DDR−SDRAM VDDQ supply and termination voltage VTT supply.
With integrated power MOSFETs the CM3202−02 can source up to
2 A of VDDQ continuous current, and source or sink up to 2 A VTT
continuous current. The typical dropout voltage for VDDQ is 500 mV
at 2 A load current.
The CM3202−02 provides excellent full load regulation and fast
response to transient load changes. It also has built−in over−current
limits and thermal shutdown at 170°C.
The CM3202−02 supports Suspend−To−RAM (STR) and ACPI
compliance with Shutdown Mode which tri−states VTT to minimize
quiescent system current.
The CM3202−02 is available in a space saving WDFN8 surface
mount packages. Low thermal resistance allows them to withstand
high power dissipation at 85°C ambient. The CM3202−02 can operate
over the industrial ambient temperature range of –40°C to 85°C.
Features
• Two Linear Regulators
• Maximum 2 A Current from VDDQ
• Source and Sink Up to 2 A VTT Current
• 1.7 V to 2.8 V Adjustable VDDQ Output Voltage
• 0.85 V to 1.4 V VTT Output Voltage (Tracking at 50% of VDDQ)
• 500 mV Typical VDDQ Dropout Voltage at 2 A
• Excellent Load and Line Regulation, Low Noise
• Meets JEDEC DDR−I and DDR−II Memory Power Spec
• Linear Regulator Design Requires no Inductors and Has Low
External Component Count
• Integrated Power MOSFETs
• Dual Purpose ADJ/Shutdown Pin
• Built−In Over−Current Limit and Thermal Shutdown for VDDQ
and VTT
• Fast Transient Response
• Low Quiescent Current
• These Devices are Pb−Free and are RoHS Compliant
http://onsemi.com
1
WDFN8
DE SUFFIX
CASE 511BH
MARKING DIAGRAM
CM320
202DE
CM320 202DE = CM3202−02DE
ORDERING INFORMATION
Device
CM3202−02DE
Package
Shipping†
WDFN8 3000/Tape & Reel
(Pb−Free)
†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.
Applications
• DDR Memory and Active Termination Buses
• Desktop Computers, Servers
• Residential and Enterprise Gateways
• DSL Modems
• Routers and Switches
• DVD Recorders
• 3D AGP Cards
• LCD TV and STB
© Semiconductor Components Industries, LLC, 2011
1
March, 2011 − Rev. 3
Publication Order Number:
CM3202−02/D
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