An integrated Shunt-LDO regulator for serial powered systems
An integrated Shunt-LDO regulator for serial powered systems
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适用于串行供电系统的集成分流 LDO 稳压器
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
N. Wermes
中科院分区：
文献类型：
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作者：
M. Karagounis;D. Arutinov;M. Barbero;F. Hügging;H. Krueger;N. Wermes
本文提出了一种新型稳压器，可集成到串行供电系统的专用集成电路中。在串行供电方案中，模块被串联放置并由恒流源供电，以减少电缆上的红外降，从而提高供电效率。在模块级，所需的电源电压由几个具有集成调节电路的并行操作asic从电流供应中冗余产生。一种并联ldo稳压器已经开发出来，允许稳健和冗余的稳压器运行，并通过并联放置的设备产生不同的电源电压。并联- ldo稳压器方案结合了低降稳压器的能力，以产生恒定的电源电压，并具有并联稳压器的特性，以确保通过设备的恒定电流。并联- ldo稳压器是为下一代高能物理实验中使用的混合像素探测器的框架而开发的。该电路的原型采用130nm CMOS技术，能够产生1.2-1.5V的电压，最小降压为200mV。最大分流电流为500mA，负载调节系数对应输出阻抗30mΩ。
In this paper, a new type of regulator is proposed for integration in ASICs used in serially powered systems. In the serial powering scheme, modules are placed in series and fed by a constant current source to reduce the IR drop on the cables which increases powering efficiency. At the module level the needed supply voltages are generated redundantly out of the current supply by several parallel operating ASICs with integrated regulation circuitry. A Shunt-LDO regulator has been developed to allow robust and redundant regulator operation and the generation of different supply voltages by parallel placed devices. The Shunt-LDO regulator scheme combines the capability of Low Drop-Out regulators to generate a constant supply voltage with the feature of shunt regulators to assure a constant current flow through the device. The Shunt-LDO regulator has been developed for application in the framework of next generation hybrid pixel detectors used in high energy physics experiments. This circuit has been prototyped in a 130nm CMOS technology, capable of generating voltages in a range of 1.2-1.5V with a minimum drop out voltage of 200mV. The maximum shunt current is 500mA with a load regulation factor corresponding to an output impedance of 30mΩ.