| Autor: |
Un-Ku Moon, Calvin Yoji Lee, Spencer Leuenberger, Qadeer A. Khan, Praveen Kumar Venkatachala, Bohui Xiao, Yang Xu, Ahmed ElShater |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
A-SSCC |
| DOI: |
10.1109/a-sscc47793.2019.9056970 |
| Popis: |
This paper presents a capacitor-less low dropout (LDO) regulator that requires no frequency compensation, with the use of an adaptive-deadzone ring amplifier. Due to the dynamic behavior of the ring amplifier depending on the input voltage, the proposed LDO features a hybrid (digital or analog) operation and achieves both fast transient response and high output accuracy with a low quiescent current. Moreover, an adaptive deadzone biasing scheme is employed to ensure high stability for a wide range of load current operating conditions. A 1V LDO prototype with 80mA maximum load current is implemented in a 0.18µm CMOS process, consuming only a quiescent current of 6.5µA with a dropout voltage of 90mV. It achieves 172-432ns settling time for load current transitions between 1mA and 81mA. The active area is 0.1mm2. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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