MAX17000 - Maxim Integrated

MAX17000 Complete DDR2 and DDR3 Memory Power-Management Solution

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™ con.

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-Shutdown o SMPS Power-Good Window Comparator o VTT Power-Good Window Comparator o Selectable Overvoltage Prote.