NE57810
NE57810 is Advanced DDR memory termination power with external reference in manufactured by Philipss.
INTEGRATED CIRCUITS
NE57810 Advanced DDR memory termination power with external reference in
Product data Supersedes data of 2002 Jul 16 2003 Sep 12
Philips Semiconductors
Philips Semiconductors
Product data
Advanced DDR memory termination power with external reference in
DESCRIPTION
The NE57810 is designed to provide power for termination of a Double Data Rate (DDR) SDRAM memory bus. It significantly reduces parts count, board space, and overall system cost pared to previous solutions. The NE57810 DDR termination regulator maintains an output voltage (DDR reference bus voltage) that is one-half that of the RAM supply voltage. It is capable of providing up to ±3.5 A for sustained periods. Overcurrent limiting protects the NE57810 from inrush currents at start-up, and overtemperature shutdown protects the device in extreme temperature situations. The SPAK-5 (SOT756) package is thermally robust for flexibility of thermal design. Because the NE57810 is a linear regulator, no external inductors or switching FETs are necessary. Fast response to load changes reduces the need for output capacitors.
Features
- Fast transient response time
- Overtemperature protection
- Overcurrent protection
- mercial (0 °C to +70 °C) temperature range
- Reduced need for external ponents
(switching FETs, inductors, decoupling capacitors)
APPLICATIONS
- Internal divider maintains termination voltage at 1/2 memory supply voltage
- Desktop microputer systems
- Workstations
- Servers
- Game machines
- Set top boxes
- Embedded systems
- Digital video recorders
- Reference out for other memory and control ponents
- Optional external voltage reference in for flexible application
- patible with DDR-I (VDD = 2.5 V) or DDR-II (VDD = 1.8 V)
SDRAM systems
SIMPLIFIED SYSTEM...
