NCP5201MN Description

The NCP5201MN Dual DDR Power Controller is specifically designed as a total power solution for a high-current DDR memory system. This NCP5201MN IC combines the efficiency of a PWM controller for the VDDQ supply with the simplicity of a linear regulator for the VTT memory termination voltage. The secondary regulator (VTT) is designed to automatically track at half the primary regulator voltage(VDDQ). An internal power good voltage monitor tracks both VDDQ and VTT outputs and notifies the user in the event of a fault on either output.

NCP5201MN Features

Incorporates VDDQ, VTT Regulators

Internal Switching Standby Regulator for VDDQ

All External Power MOSFETs Are N-Channel

Adjustable VDDQ

VTT Tracks VDDQ/2

Fixed Switching Frequency of 250 kHz for VDDQ in Normal Mod

Doubled Switching Frequency (500 kHz) for Standby Mode

Soft-Start Protection for VDDQ

Undervoltage Monitor

Short-Circuit Protection for Both VDDQ and VTT Outputs

NCP5201MN Applications

DDR Termination Voltage

Active Termination Busses

Industrial 

Grid infrastructure 

Enterprise systems 

Enterprise machine 

Personal electronics 

Tablets