W83310S-R2/W83310G-R2

Publication Release Date: January 17, 2005

-1-

Revision 0.53

1. GENERAL DESCRIPTION

The W83310S-R2 is a linear regulator which provides achieves peak 2.0 Amp/cont. 1.8 Amp bi-

directional sinking and driving capability for DDR SDRAM bus terminator application. The chip simply

implement a stable power supply which can track half of input power dynamically for bus terminator

with a single chip; that is the chip integrates two power MOSFETs. There is no any external power

device needed. The W83310S-R2 is promoted with small footprint 8-SOP 150mil package. With

W83301S-R2 design, a high integration, high performance, and cost-effective solution is promoted.

2. FEATURES

Regulates a bi-directional power with driving and sinking capability

Provides achieve peak 2.0 Amp/cont. 1.8 Amp driving and sinking current

Power MOSFET integrated

Low external component count

Low output voltage offset

Operates with +3.3V and +2.5V control power

Small package

Low cost and easy to use

3. APPLICATIONS

DDR Bus Termination Regulator

Active Termination Bus

SSTL-2

SSTL-3