DDR Termination Regulators | CM3202-02

DDR VDDQ and Termination Voltage Regulator

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Overview

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 2A of VDDQ continuous current, and source or sink up to 2A VTT continuous current. The typical dropout voltage for VDDQ is 500mV at 2A 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 TDFN-8 and SOIC-8 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.

  • DDR memory and active termination buses
  • Digital TV, Set Top Box, PC/Notebook, Gaming
  • Two linear regulators: Maximum 2A current from VDDQ and Source and sink up to 2A VTT current
  • 1.7V to 2.8V adjustable VDDQ output voltage
  • 0.85V to 1.4V VTT output voltage (tracking at 50% of VDDQ)
  • 500mV typical VDDQ dropout voltage at 2A
  • Excellent load and line regulation, low noise
  • Meet JEDEC DDR-I and DDR-II memory power spec

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IOUT VTT Max (A)

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CM3202-02DE

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Obsolete

CAD Model

Pb

A

H

P

WDFN-8

511BH

1

260

REEL

3000

N

DDR

3.5

7000

-

-

No

No

Price N/A

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