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[原创] TI TPS7H3301-SP耐辐射DDR端电源解决方案

关键词:电源管理 DC/DC转换器 DDR3存储器

时间:2016-07-22 09:42:59       作者:TI       来源:中电网

TI公司的TPS7H3301-SP是内置了VTTREF缓冲器的TID和SEE耐辐射(65 MeV-cm2/mg)双数据速率(DDR) 3A电源稳压器,和DDR,DDR2.DDR3,DDR4和低功耗JEDEC标准兼容,输出电压0.5V到1.75V,3A沉和源电流,精度±20-mV,主要用在如单板计算机,固态记录仪和有效载荷处理中的DDR端应用.本文介绍了TPS7H3301-SP主要特性,功能框图,典型应用电路以及TPS7H3301-SP评估板(EVM)主要特性,框图,电路图和材料清单.

The TPS7H3301-SP is a TID and SEE radiation-hardened double data rate (DDR) 3-A termination regulator with built-in VTTREF buffer. The regulator is specifically design to provide a complete, compact, low-noise solution for space DDR termination applications such as single board computers, solid state recorders, and payload processing.

The TPS7H3301-SP supports and is compliant to DDR, DDR2, DDR3, DDR4, and associated low-power JEDEC specifications. The fast transient response of the TPS7H3301-SP VTT regulator allows for a very stable supply during read/write conditions. During transients, the fast tracking feature of the VTTREF supply minimizes any voltage offset between VTT and VTTREF. To enable simple power sequencing, both an enable input and a power-good output (PGOOD) have been integrated into the TPS7H3301-SP. The PGOOD output is open-drain so it can be tied to multiple open-drain outputs to monitor when all..

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