CM3202-00 Datasheet, PDF (1/11 Pages) ON Semiconductor – VTT Termination Voltage Regulator

CM3202-00
DDR VDDQ and VTT
Termination Voltage
Regulator
Product Description
The CM3202−00 is a dual−output low noise linear regulator
designed to meet SSTL−2 and SSTL−3 specifications for
DDR−SDRAM V_DDQ supply and termination voltage V_TT supply.
With integrated power MOSFET’s, the CM3202−00 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 CM3202−00 provides fast response to transient load changes.
Load regulation is excellent, from no load to full load. It also has
built−in over−current limits and thermal shutdown at 170°C.
The CM3202−00 supports Suspend−To−RAM (STR) and ACPI
compliance with shutdown mode which tri−states V_TT to minimize
quiescent system current.
The CM3202−00 is packaged in an easy−to−use WDFN8. Low
thermal resistance allows it to withstand high power dissipation at
85°C ambient. It operates over the industrial ambient temperature
range of –40°C to 85°C.
http://onsemi.com
1
WDFN8
DE SUFFIX
CASE 511BH
MARKING DIAGRAM
CM320
200DE
CM320 200DE = CM3202−00DE
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 V_DDQ Output Voltage
• 500 mV Typical VDDQ Dropout Voltage at 2 A
• V_TT Tracking at 50% of VDDQ
• Excellent Load and Line Regulation, Low Noise
• Fast Transient Response
• Meet 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
ORDERING INFORMATION
Device
CM3202−00DE
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 Switchers
• DVD Recorders
• 3D AGP Cards
• LCD TV and STB
© Semiconductor Components Industries, LLC, 2011
1
April, 2011 − Rev. 3
Publication Order Number:
CM3202−00/D