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MAX17000 - Complete DDR2 and DDR3 Memory Power-Management Solution

General Description

The MAX17000 pulse-width modulation (PWM) controller provides a complete power solution for notebook DDR, DDR2, and DDR3 memory.

It comprises a stepdown controller, a source/sink LDO regulator, and a reference buffer to generate the required VDDQ, VTT, and VTTR rails.

Key Features

  • o SMPS Regulator (VDDQ) Quick-PWM with 100ns Load-Step Response Output Voltages.
  • Preset 1.8V, 1.5V, or Adjustable 1.0V to 2.5V 1% VOUT Accuracy Over Line and Load 26V Maximum Input Voltage Rating Accurate Valley Current-Limit Protection 200kHz to 600kHz Switching Frequency o Source/Sink Linear Regulator (VTT) ±2A Peak Source/Sink Low-Output Capacitance Requirement Output Voltages-Preset VDDQ/2 or REFIN Adjustable from 0.5V to 1.5V o Low Quiescent Current Standby State o Soft-Start/Soft-Sh.

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The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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EVALUATION KIT AVAILABLE MAX17000 Complete DDR2 and DDR3 Memory Power-Management Solution General Description The MAX17000 pulse-width modulation (PWM) controller provides a complete power solution for notebook DDR, DDR2, and DDR3 memory. It comprises a stepdown controller, a source/sink LDO regulator, and a reference buffer to generate the required VDDQ, VTT, and VTTR rails. The VDDQ rail is supplied by a step-down converter using Maxim’s proprietary Quick-PWM™ controller. The high-efficiency, constant-on-time PWM controller handles wide input/output voltage ratios (low duty-cycle applications) with ease and provides 100ns response to load transients while maintaining a relatively constant switching frequency.