Abstract
This paper presents a capacitor-less low-dropout (LDO) regulator for on-chip mobile applications. An additional push-pull current with a capacitive coupling circuit is proposed to significantly enhance the transient response of the LDO regulator. The proposed LDO regulator can deliver an output current of 100 mA with a minimum dropout voltage of 0.4 V. The circuit was modeled and implemented in a 0.35-µm CMOS process with a die area of 0.22 mm2. The experimental results show that the LDO regulator can be recovered within 0.5 µs at a voltage spike less than 90 mV.
Original language | English |
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Article number | 20160882 |
Journal | ieice electronics express |
Volume | 13 |
Issue number | 23 |
DOIs | |
Publication status | Published - 2016 |
Keywords
- Capacitor-less low-dropout (LDO) regulator
- Regulator
- System-on-chip
- Transient enhancement
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering