© Semiconductor Components Industries, LLC, 2006

May, 2006 − Rev. 5

1

Publication Order Number:

NCP5208/D

NCP5208

DDR−I/II Termination

Regulator

The NCP5208 is a linear regulator specifically designed for the

active termination of DDR−I/II SDRAM. The device can be operated

from a single supply voltage as low as 1.7 V. For DDR−I

applications, the device is capable of sourcing and sinking current up

to 1.5 A with the output voltage regulated to within

"3% or better. A

separate voltage feedback pin ensures superior load regulation

against load and line changes.

Protective features include soft−start, source/sink current limits

and thermal shutdown. Open−drain VTT OK output (POK) is added

for system monitoring. The shutdown pin can tri−state the regulator

output for Suspend To RAM (STR) state. This device is available in a

SOIC−8 package.

Features

Typical Applications

Figure 1. Typical Application Circuit

NCP5208

SD

POK

AVIN

VTT

VFB

VTT

1.25 V,

1.5 A

2.5 V

VDDQ

VDDQ

AVIN

PVIN

2.5 V

GND

SOIC−8

D SUFFIX

CASE 751

PIN CONNECTIONS

Device

Package

ORDERING INFORMATION

NCP5208DR2

SOIC−8

2500/Tape & Reel

http://onsemi.com

MARKING DIAGRAM

18

5

3

4

(Top View)

POK

VFB

VTT

7

6

2

PVIN

GND

SD

VDDQ

AVIN

†For information on tape and reel specifications,

including part orientation and tape sizes, please

refer to our Tape and Reel Packaging Specifications

Brochure, BRD8011/D.

A

= Assembly Location

L

= Wafer Lot

Y

= Year

W = Work Week

G

= Pb−Free Package

NCP5208DR2G

SOIC−8

(Pb−Free)

2500/Tape & Reel

1

N5208

ALYW

G

1

8