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NCP5203

Part Number	NCP5203
Manufacturer	ON
Description	2-in-1 DDR Power Controller
Published	May 12, 2005
Detailed Description	NCP5203 2−in−1 DDR Power Controller The NCP5203 2−in−1 DDR Power Controller is a complete power solution for an ACPI com...
Datasheet	NCP5203 PDF File

Overview

NCP5203 2−in−1 DDR Power Controller The NCP5203 2−in−1 DDR Power Controller is a complete power solution for an ACPI compliant high current DDR memory system.
This IC combines the efficiency of a PWM controller for the VDDQ supply with the simplicity of linear regulator for the VTT termination voltage.
The NCP5203 contains a synchronous PWM buck controller for driving two external NFETs to form the DDR memory supply voltage (VDDQ).
The $2.
0 A user adjustable VTT terminator regulator has short circuit protection.
An internal power good function monitors both the VDDQ and VTT outputs and signals if a fault occurs.
Protective features include soft−start, undervoltage monitoring of 5VDUAL, over protection current (OCP), and thermal shutdown.
The IC is packaged in 18−lead QFN.
Features http://onsemi.
com MARKING DIAGRAM 18 1 18−LEAD QFN, 5 x 6 mm MN SUFFIX CASE 505 1 NCP5203 AWLYYWW • • • • • • • • • • • • • • • Supports DDR I and DDR II Incorporates VDDQ, VTT Regulators Operates from Sin...

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