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Presenter(s)
![Seung Soo Kwak Headshot](https://confcats-catavault.s3.amazonaws.com/CATAVault/ieeecass/master/files/styles/cc_user_photo/s3/user-pictures/17262.jpg?h=d0dd59e8&itok=aLq-0hpv)
Display Name
Seung Soo Kwak
- Affiliation
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AffiliationKorea University
- Country
Abstract
This paper presents the design of low-dropout (LDO) regulator optimized on power efficiency and load transient response. As the LDO is always-on block, the quiescent current is a critical parameter of LDO. The proposed circuit includes an op-amp which shows high slew rate with low quiescent current. A voltage damper circuit is included for fast load transient response. A body feedback loop helps the LDO regulator to react to relatively slow distortion of the output voltage. The proposed LDO regulator is fabricated in a 180 nm CMOS process. The test results show that maximum undershoot is 125.9 mV during load transient and 0.177 ns/μm figure-of-merit (FOM) at the quiescent current of 0.02532 mA.