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引用次数: 6
摘要
本文在前人公开文献研究的基础上，提出了一种具有恒流限流电路、反折叠限流电路和热关断等多种功能的低降差(LDO)稳压器。采用台积电0.35 um CMOS工艺，利用HSPICE电路模拟器对电路功能进行了仿真和验证。LDO的电源电压范围为0.9 V ~ 1.1 V。输出负载由轻转重时，暂态响应时间小于30us。
A Sub-1 V CMOS LDO Regulator with Multiple Protections Capabilities
Based on previous research in open literature, this paper presents a low drop-out (LDO) regulator with multiple capabilities of constant current limiting circuit, fold-back current limiting, and thermal shutdown. By using TSMC 0.35 um CMOS technology, the circuit function is simulated and verified by circuit simulator of HSPICE. The supply voltage of the LDO regular is capable of ranging from 0.9 V to 1.1 V. When output loading is changed from light to heavy status, the transient responses time is less than 30 us.
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