TY - JOUR
T1 - Capless LDO Regulator Achieving -76 dB PSR and 96.3 fs FOM
AU - Yun, Seong Jin
AU - Kim, Jeong Seok
AU - Kim, Yong Sin
N1 - Funding Information:
Manuscript received September 6, 2016; revised November 7, 2016; accepted November 13, 2016. Date of publication November 15, 2016; date of current version September 25, 2017. This work was supported in part by the Basic Science Research Program through the National Research Foundation of Korea within the Ministry of Science, ICT and Future Planning under Grant NRF-2014R1A1A1003771 and in part by Samsung Electronics. This brief was recommended by Associate Editor H.-J. Chiu.
PY - 2017/10
Y1 - 2017/10
N2 - The performance of switching devices such as display driver ICs is degraded by large power supply noise at switching frequencies from a few hundreds of kilohertz to a few megahertz. In order to minimize the power supply noise, a low-dropout (LDO) regulator with higher power supply rejection (PSR) is essential. In this brief, a capless LDO regulator with a negative capacitance circuit and voltage damper is proposed for enhancing PSR and figure of merit (FOM), respectively, in switching devices. The proposed LDO regulator is fabricated in a 0.18 μm CMOS. Measurement results show that the proposed LDO regulator achieves -76 dB PSR at 1 MHz and 96.3 fs FOM with a total on-chip capacitance of as small as 12.7 pF.
AB - The performance of switching devices such as display driver ICs is degraded by large power supply noise at switching frequencies from a few hundreds of kilohertz to a few megahertz. In order to minimize the power supply noise, a low-dropout (LDO) regulator with higher power supply rejection (PSR) is essential. In this brief, a capless LDO regulator with a negative capacitance circuit and voltage damper is proposed for enhancing PSR and figure of merit (FOM), respectively, in switching devices. The proposed LDO regulator is fabricated in a 0.18 μm CMOS. Measurement results show that the proposed LDO regulator achieves -76 dB PSR at 1 MHz and 96.3 fs FOM with a total on-chip capacitance of as small as 12.7 pF.
KW - Low-dropout (LDO) regulator
KW - negative capacitance
KW - power supply rejection (PSR)
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U2 - 10.1109/TCSII.2016.2628965
DO - 10.1109/TCSII.2016.2628965
M3 - Article
AN - SCOPUS:85030830391
VL - 64
SP - 1147
EP - 1151
JO - IEEE Transactions on Circuits and Systems I: Regular Papers
JF - IEEE Transactions on Circuits and Systems I: Regular Papers
SN - 1549-8328
IS - 10
M1 - 7744496
ER -