General Description

The RT9173C 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 JEDEC SSTL_2 and SSTL_18 or other specific interfaces such as HSTL, SCSI-2 and SCSI-3 etc. devices requirements. The regulator is capable of actively sinking or sourcing up to 2A while regulating an output voltage to within 40mV. The output termination voltage cab 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.

Features

• Ideal for DDR-I, DDR-II and DDR-III VTT Applications

• Sink and Source 2A Continuous Current

• Integrated Power MOSFETs

• Generates Termination Voltage for SSTL_2, SSTL _18, HSTL, SCSI-2 and SCSI-3 Interfaces

• High Accuracy Output Voltage at Full-Load

• Output Adjustment by Two External Resistors

• Low External Component Count

• Shutdown for Suspend to RAM (STR) Functionality with High-Impedance Output

• Current Limiting Protection

• On-Chip Thermal Protection

• Available in SOP-8 (Exposed Pad) Packages

• VIN and VCNTL No Power Sequence Issue

• RoHS Compliant and 100 Lead (Pb)-Free

Applications

• Desktop PCs, Notebooks, and Workstations

• Graphics Card Memory Termination

• Set Top Boxes, Digital TVs, Printers

• Embedded Systems

• Active Termination Buses

• DDR-I, DDR-II and DDR-III Memory Systems

RT9173C属于集成电路（IC） > 特殊用途稳压器。立绮科技制造生产的RT9173C特殊用途稳压器该系列产品用于电源控制、某种形式的转换，适用于特定的复杂应用。因此，各种产品特性集差异较大，包括空燃比传感器接口、汽车交流发电机电压调节、DDR 端接、液体透镜控制、摩托车转向信号控制、热电 (peltier) 冷却器控制、压电触觉控制、阀门控制、小型发动机管理等。