Christopher Schaef

16 papers Journal 5Unranked 11
YearRankTypeTitle / Venue / Authors
2025 — conf
21.5 A Fully Integrated Multi-Phase Voltage Regulator with Enhanced Light-Load-Efficiency Peak of 86%, Featuring an Autonomous Mode Transition from Hard-Switching to Soft-Switching to Discontinuous Conduction Mode in 3nm FinFET CMOS.
ISSCC
Kishan Joshi, Avinash Shreepathi Bhat, Christopher Schaef, Keng Chen, Edward Lee, Yura Kocharyan, Ajay Janardanan, Dinesh Ganta, Huanhuan Zhang, Maximilian Geppert, Prescott McLaughlin, Arvind Raghavan, Sivaraman Masilamani, Syed Askari, Kelly Livingston
2024 — conf
28.6 An 87% Efficient 2V-Input, 200A Voltage Regulator Chiplet Enabling Vertical Power Delivery in Multi-kW Systems-on-Package.
ISSCC
Rinkle Jain, Shunjiang Xu, Rajiv Kaushal, Carlos Mariscal, Humberto Caballero, Tamir Salus, Christopher Schaef, Anup Deka, Aruna Payala, Keng Chen, Huong T. Do, Jonathan Douglas
2022 J jnl
A 32-A, 5-V-Input, 94.2% Peak Efficiency High-Frequency Power Converter Module Featuring Package-Integrated Low-Voltage GaN nMOS Power Transistors.
IEEE J. Solid State Circuits
Nachiket V. Desai, Han Wui Then, Jingshu Yu, Harish K. Krishnamurthy, William J. Lambert, Nicolas Butzen, Sheldon Weng, Christopher Schaef, Kaladhar Radhakrishnan, Krishnan Ravichandran, James W. Tschanz, Vivek De
2022 — conf
A IMax |
ISSCC
Christopher Schaef, Tamir Salus, Rachid Rayess, Siddarth Kulasekaran, Mat Manusharow, Kaladhar Radhakrishnan, Jonathan Douglas
2022 — conf
Fully Integrated Voltage Regulators with Package-Embedded Inductors for Heterogeneous 3D-TSV-Stacked System-in-Package with 22nm CMOS Active Silicon Interposer Featuring Self-Trimmed, Digitally Controlled ON-Time Discontinuous Conduction Mode (DCM) Operation.
VLSI Technology and Circuits
Nachiket V. Desai, Harish K. Krishnamurthy, Suhwan Kim, Christopher Schaef, Sheldon Weng, Beomseok Choi, William J. Lambert, Krishnan Ravichandran, James W. Tschanz, Vivek De
2021 — conf
A 32A 5V-Input, 94.2% Peak Efficiency High-Frequency Power Converter Module Featuring Package-Integrated Low-Voltage GaN NMOS Power Transistors.
VLSI Circuits
Nachiket V. Desai, Harish K. Krishnamurthy, William J. Lambert, Jingshu Yu, Han Wui Then, Nicolas Butzen, Sheldon Weng, Christopher Schaef, N. Nidhi, Marko Radosavljevic, Johann Rode, Justin Sandford, Kaladhar Radhakrishnan, Krishnan Ravichandran, Bernhard Sell, James W. Tschanz, Vivek De
2021 J jnl
A Universal Modular Hybrid LDO With Fast Load Transient Response and Programmable PSRR in 14-nm CMOS Featuring Dynamic Clamp Strength Tuning.
IEEE J. Solid State Circuits
Xiaosen Liu, Harish K. Krishnamurthy, Taesik Na, Sheldon Weng, Khondker Zakir Ahmed, Christopher Schaef, Krishnan Ravichandran, James W. Tschanz, Vivek De
2020 — conf
An Autonomous Reconfigurable Power Delivery Network (RPDN) for Many-Core SoCs Featuring Dynamic Current Steering.
VLSI Circuits
Zakir K. Ahmed, Harish K. Krishnamurthy, Sheldon Weng, Xiaosen Liu, Christopher Schaef, Nachiket V. Desai, Krishnan Ravichandran, James W. Tschanz, Vivek De
2019 — conf
A 93.8% Peak Efficiency, 5V-Input, 10A Max ILOAD Flying Capacitor Multilevel Converter in 22nm CMOS Featuring Wide Output Voltage Range and Flying Capacitor Precharging.
ISSCC
Christopher Schaef, Sheldon Weng, Beomseok Choi, William J. Lambert, Kaladhar Radhakrishnan, Krishnan Ravichandran, James W. Tschanz, Vivek De
2019 — conf
A Fully Integrated Voltage Regulator in 14nm CMOS with Package-Embedded Air-Core Inductor Featuring Self-Trimmed, Digitally Controlled Variable On-Time Discontinuous Conduction Mode Operation.
ISSCC
Christopher Schaef, Nachiket V. Desai, Harish Krishnamurthy, Sheldon Weng, Huong T. Do, William J. Lambert, Kaladhar Radhakrishnan, Krishnan Ravichandran, James W. Tschanz, Vivek De
2019 J jnl
A Light-Load Efficient Fully Integrated Voltage Regulator in 14-nm CMOS With 2.5-nH Package-Embedded Air-Core Inductors.
IEEE J. Solid State Circuits
Christopher Schaef, Kaladhar Radhakrishnan, Krishnan Ravichandran, James W. Tschanz, Vivek De, Nachiket V. Desai, Harish K. Krishnamurthy, Xiaosen Liu, Khondker Zakir Ahmed, Suhwan Kim, Sheldon Weng, Huong T. Do, William J. Lambert
2018 — conf
A Single-Stage, Single-Inductor, 6-Input 9-Output Multi-Modal Energy Harvesting Power Management IC for 100µW-120MW Battery-Powered IoT Edge Nodes.
VLSI Circuits
Suhwan Kim, Vaibhav A. Vaidya, Christopher Schaef, Andrew Lines, Harish Krishnamurthy, Sheldon Weng, Xiaosen Liu, Dileep Kurian, Tanay Karnik, Krishnan Ravichandran, James W. Tschanz, Vivek De
2017 — conf
10.2 A digitally controlled 94.8%-peak-efficiency hybrid switched-capacitor converter for bidirectional balancing and impedance-based diagnostics of lithium-ion battery arrays.
ISSCC
Christopher Schaef, Eric Din, Jason T. Stauth
2017 J jnl
A Hybrid Switched-Capacitor Battery Management IC With Embedded Diagnostics for Series-Stacked Li-Ion Arrays.
IEEE J. Solid State Circuits
Christopher Schaef, Eric Din, Jason T. Stauth
2015 — conf
20.2 A variable-conversion-ratio 3-phase resonant switched capacitor converter with 85% efficiency at 0.91W/mm
ISSCC
Christopher Schaef, Kapil Kesarwani, Jason T. Stauth
2015 J jnl
A 3-Phase Resonant Switched Capacitor Converter Delivering 7.7 W at 85% Efficiency Using 1.1 nH PCB Trace Inductors.
IEEE J. Solid State Circuits
Christopher Schaef, Jason T. Stauth