RT9199中文资料Cost-Effective, 2A Peak Sink/Source Bus Termination Regulator数据手册Richtek规格书

描述 Description

The RT9199 is a simple, cost-effective and high-speed linear regulator designed to generate termination voltage in Double Data Rate (DDR) memory system to comply with the devices requirements. The regulator is capable of actively sinking or sourcing up to peak 2A for DDRII or 1.5A for DDRIII while regulating an output voltage to within 20mV. The output termination voltage can be tightly regulated to track 1/2VDDQ by two external voltage divider resistors or the desired output voltage can be pro-grammed by externally forcing the REFEN pin voltage.



The RT9199 also incorporates a high-speed differential amplifier to provide ultra-fast response in line/load transient. Other features include extremely low initial offset voltage, excellent load regulation, current limiting in bi-directions and on-chip thermal shut-down protection.



The RT9199 are available in both SOP-8 and SOP-8 (Exposed Pad) surface mount packages.

特性 Features

•Ideal for DDRII / DDRIII VTT Applications
•Integrated Power MOSFETs
•High Accuracy Output Voltage at Full-Load
•Low External Component Count
•Current Limiting Protection
•RoHS Compliant and Halogen Free

应用 Application

• Desktop PCs, Notebooks, and Workstations
• Set Top Boxes, Digital TVs, Printers
• Active Termination Buses
• DDR/II Memory Systems