W83310S/W83310SG
Publication Release Date: Oct. 2006
-1- Revision 1.0
1. GENERAL DESCRIPTION
The W83310S is a linear regulator which provides achieves continuous 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 is promoted with SOP-8 power package. With W83310S design, a high integration, high
performance, and cost-effective solution is promoted.
2. FEATURES
y Regulates a bi-directional power with driving and sinking capability
y Provides achieve continuous 1.8Amp driving and sinking current
y Power MOSFET integrated
y Low external component count
y Low output voltage offset
y Operates with +3.3V and +2.5V control power
y Current limit protection
y Over temperature protection
y Power package SOP-8
y Low cost and easy to use
3. APPLICATIONS
y DDR and DDR II Bus Termination Regulator
y Active Termination Bus
y SSTL-2
y SSTL-3