IEEE SSCS Utah Chapter Event: Lunch & Lecture by Dr. Hyun-Sik Kim
We are honored to have a Distinguished Lecturer, Dr. Hyun-Sik Kim. He is currently an Associate Professor of Electrical Engineering at the Korea Advanced Institute of Science and Technology (KAIST) in Daejeon, Korea. He will be speaking on how to get maximum performance from on-chip LDOs (Low Drop Out voltage regulators). Dr. Kim is coming from Korean just to speak at our Utah chapter and Los Angeles.
We are limited to 45 attendees and registration is required. You do not need to be an IEEE member to attend. There is no cost to attend the lecture. The lecture will be held at the Merrill Engineering Building (MEB) on the University of Utah campus.
A Cafe Rio lunch will be provided free of charge after the lecture for IEEE members.
Non-IEEE members can join the lunch by paying $12 per person.
Guest parking is available at the meters in the MEB north parking lot. Cost for parking is $8 (half day) after scanning QR code on the meter or in advance through this site https://utah.t2hosted.com/cmn/auth_guest.aspx.
You may also park in the paid parking lot close to the Union Building if the Merrill Engineering parking lot is full. Parking Meters are available at the Union Parking lot. Unregistered cars most likely will be ticketed.
Date and Time
Location
Hosts
Registration
- Date: 24 Oct 2024
- Time: 05:00 PM UTC to 07:00 PM UTC
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- 50 S Central Campus Dr
- Salt Lake City, Utah
- United States 84112
- Building: Merrill Engineering Building
- Room Number: 2555
- Click here for Map
- Starts 03 October 2024 06:00 AM UTC
- Ends 23 October 2024 12:00 AM UTC
- Admission fee (optional) ?
Speakers
Hyun
Exploring Ways to Minimize Dropout Voltage for Energy-Efficient LDO Regulators
Low-dropout (LDO) regulators are ideal off- and on-chip solutions for powering noise-sensitive loads due to their ripple-less output. LDOs also have many benefits over switch-mode dc-dc converters, such as rapid transient response, excellent power supply rejection (PSR), and compact footprint. Unfortunately, they suffer from an inescapable disadvantage: poor power efficiency; this is primarily caused by a considerable dropout voltage (VDO). Reducing VDO to improve efficiency often leads to a significant drop in LDO’s regulation performance. Because of this, most LDOs are designed with a large VDO, making them perceived as energy-consuming components of power management systems.
This talk will delve into effective ways to extremely minimize the dropout voltage without compromising performance, aiming for energy-efficient LDO regulators. We will begin with a thorough investigation of operational principles, analyses, and strategies, exploring trade-offs among key performance metrics. Next, several promising approaches to realizing energy-efficient LDO regulators will be investigated, including traditional digital LDOs, a dual-rail analog/digital-hybrid LDO, a triode-region LDO, and a voltage/current-hybrid (VIH) LDO. Finally, the technical merits and flaws of each high-efficiency LDO topology will be investigated by comparing them. In this talk, I will also share my insights from my experience developing the VIH LDO regulator that achieves 98.6% efficiency and a -75dB PSR at 30kHz.
Biography:
Hyun-Sik Kim is currently an Associate Professor of Electrical Engineering at the Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea. He received his B.S. degree (Hons.) in electronic engineering from Hanyang University, Seoul, South Korea, in 2009, and his M.S. and Ph.D. degrees in electrical engineering from KAIST, in 2011 and 2014, respectively. His research interests include the CMOS analog-integrated circuit designs, with an emphasis on display drivers, power managements, and sensory readout chips. Prof. Kim was a recipient of two Gold Prizes in the 18th and 19th Samsung Human-Tech Paper Awards in 2012 and 2013, respectively, the IEEE SSCS Pre-Doctoral Achievement Award in 2014, the IEEE SSCS Seoul Chapter Best Student JSSC Paper Award in 2014, and the KAIST Technology Innovation Award in 2022. He served as a guest editor of the IEEE Solid-State Circuits Letters (SSC-L) and is currently serving on the Technical Program Committees (TPC) for the IEEE International Solid-State Circuits Conference (ISSCC), the IEEE Asian Solid-State Circuits Conference (A-SSCC), and the IEEE Custom Integrated Circuits Conference (CICC).
Address:United States