NCP5203 Datasheet (ON) - 2-in-1 DDR Power Controller

NCP5203, 2-in-1 DDR Power Controller

Pin No.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Symbol VDDQEN VTTEN PGOOD REFSNS FBVTT AGND SS COMP FBDDQ OCDDQ SWDDQ 5VDUAL TGDDQ BGDDQ BST PGND VTT VDDQ VDDQ regulator enable input.

Active high.

VTT regulator enable input.

Active high.

Power good signal open *drain output.

Reference vo

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 t

NCP5203 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