IEICE TRANSACTIONS on Electronics
A Low-Power High Accuracy Over Current Protection Circuit for Low Dropout Regulator
Summary :
In this paper, a low power current protection circuit implemented in a low dropout regulator (LDO) is presented. The proposed circuit, designed in a 0.35 µm CMOS process, provides a precise limiting current as well as holding current with low dependency on both supply voltage and regulator output voltage. The experimental results showed that the proposed circuit is operable in the regulator output voltage range from VOUT=1.2 V to VOUT=3.6 V and supply voltage range from VDD=VOUT+0.5 V to VDD=5.6 V. Since the proposed circuit is composed of few simple basic circuits such as a comparator and a Schmitt Trigger, it has a low current consumption of less than ISS=0.82 µA at a load current of ILOAD=200 mA. This makes the circuit suitable for low power and low voltage LDO design.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E92-C No.9 pp.1208-1214
- Publication Date
- 2009/09/01
- Publicized
- Online ISSN
- 1745-1353
- DOI
- 10.1587/transele.E92.C.1208
- Type of Manuscript
- PAPER
- Category
- Electronic Circuits
Authors
Keyword
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Socheat HENG, Cong-Kha PHAM, "A Low-Power High Accuracy Over Current Protection Circuit for Low Dropout Regulator" in IEICE TRANSACTIONS on Electronics,
vol. E92-C, no. 9, pp. 1208-1214, September 2009, doi: 10.1587/transele.E92.C.1208.
Abstract: In this paper, a low power current protection circuit implemented in a low dropout regulator (LDO) is presented. The proposed circuit, designed in a 0.35 µm CMOS process, provides a precise limiting current as well as holding current with low dependency on both supply voltage and regulator output voltage. The experimental results showed that the proposed circuit is operable in the regulator output voltage range from VOUT=1.2 V to VOUT=3.6 V and supply voltage range from VDD=VOUT+0.5 V to VDD=5.6 V. Since the proposed circuit is composed of few simple basic circuits such as a comparator and a Schmitt Trigger, it has a low current consumption of less than ISS=0.82 µA at a load current of ILOAD=200 mA. This makes the circuit suitable for low power and low voltage LDO design.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E92.C.1208/_p
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@ARTICLE{e92-c_9_1208,
author={Socheat HENG, Cong-Kha PHAM, },
journal={IEICE TRANSACTIONS on Electronics},
title={A Low-Power High Accuracy Over Current Protection Circuit for Low Dropout Regulator},
year={2009},
volume={E92-C},
number={9},
pages={1208-1214},
abstract={In this paper, a low power current protection circuit implemented in a low dropout regulator (LDO) is presented. The proposed circuit, designed in a 0.35 µm CMOS process, provides a precise limiting current as well as holding current with low dependency on both supply voltage and regulator output voltage. The experimental results showed that the proposed circuit is operable in the regulator output voltage range from VOUT=1.2 V to VOUT=3.6 V and supply voltage range from VDD=VOUT+0.5 V to VDD=5.6 V. Since the proposed circuit is composed of few simple basic circuits such as a comparator and a Schmitt Trigger, it has a low current consumption of less than ISS=0.82 µA at a load current of ILOAD=200 mA. This makes the circuit suitable for low power and low voltage LDO design.},
keywords={},
doi={10.1587/transele.E92.C.1208},
ISSN={1745-1353},
month={September},}
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TY - JOUR
TI - A Low-Power High Accuracy Over Current Protection Circuit for Low Dropout Regulator
T2 - IEICE TRANSACTIONS on Electronics
SP - 1208
EP - 1214
AU - Socheat HENG
AU - Cong-Kha PHAM
PY - 2009
DO - 10.1587/transele.E92.C.1208
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E92-C
IS - 9
JA - IEICE TRANSACTIONS on Electronics
Y1 - September 2009
AB - In this paper, a low power current protection circuit implemented in a low dropout regulator (LDO) is presented. The proposed circuit, designed in a 0.35 µm CMOS process, provides a precise limiting current as well as holding current with low dependency on both supply voltage and regulator output voltage. The experimental results showed that the proposed circuit is operable in the regulator output voltage range from VOUT=1.2 V to VOUT=3.6 V and supply voltage range from VDD=VOUT+0.5 V to VDD=5.6 V. Since the proposed circuit is composed of few simple basic circuits such as a comparator and a Schmitt Trigger, it has a low current consumption of less than ISS=0.82 µA at a load current of ILOAD=200 mA. This makes the circuit suitable for low power and low voltage LDO design.
ER -
English
