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http://dx.doi.org/10.7471/ikeee.2021.25.1.201

LDO Regulator with Improved Fast Response Characteristics and Push-Pull Detection Structure  

Lee, Joo-Young (Dept of Electronics Engineering, Seokyeong University)
Publication Information
Journal of IKEEE / v.25, no.1, 2021 , pp. 201-205 More about this Journal
Abstract
In this paper present Low Drop-Out (LDO) regulator that improved load transient characteristics due to the push-pull detection structure. The response characteristic of the voltage delta value is improved due to the proposed push-pull sensing circuit structure between the input terminal of the LDO regulator pass transistor and the output terminal of the internal error amplifier. Voltage value has improved load transient characteristics than conventional LDO regulator. Compared to the conventional LDO regulator, it has an improved response speed of approximately 244 ns at rising time and approximately 90 ns at falling time. The proposed circuit was simulated by the samsung 0.13um process using Cadence's Specter and Virtuoso simulator.
Keywords
LDO regulator; load transient; load regulation; Push-pull detection; response speed;
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