Krishnan Ravichandran

Publication Activity (10 Years)

Years Active: 2014-2024
Publications (10 Years): 39

Top Topics

Fully Integrated

Top Venues

IEEE J. Solid State Circuits

Publications

Nicolas Butzen, Harish Krishnamurthy, Jingshu Yu, Khondker Zakir Ahmed, Sheldon Weng, Krishnan Ravichandran, Ramez Hosseinian Ahangharnejhad, James Waldemer, Chris Pelto, James W. Tschanz
Pmax, 92% Peak-Efficiency CSCR-First Switched-Capacitor DC-DC Converter. ISSCC (2024)
Suhwan Kim, Harish K. Krishnamurthy, Zakir Ahmed, Nachiket V. Desai, Sheldon Weng, Anne Augustine, Huong T. Do, Jingshu Yu, Phong D. Bach, Xiaosen Liu, Kaladhar Radhakrishnan, Krishnan Ravichandran, James W. Tschanz, Vivek De
600 MHz Top-Metal and C4 Planar Spiral Inductor-Based Integrated Buck Voltage Regulator on 16nm-Class CMOS. ISSCC (2024)
Suhwan Kim, Harish K. Krishnamurthy, Sergey Sofer, Sheldon Weng, Shahar Wolf, Ashoke Ravi, Krishnan Ravichandran, Ofir Degani, James W. Tschanz, Vivek De
A 1.8W High-Frequency SIMO Converter Featuring Digital Sensor-Less Computational Zero-Current Operation and Non-Linear Duty-Boost. ISSCC (2023)
Nicolas Butzen, Harish Krishnamurthy, Zakir Ahmed, Sheldon Weng, Krishnan Ravichandran, Michael Zelikson, James W. Tschanz, Jonathan Douglas
Imax, 88.5% Peak-Efficiency Continuously Scalable Conversion-Ratio Switched-Capacitor DC-DC Converter. ISSCC (2023)
Xiaosen Liu, Harish Krishnamurthy, Renzhi Liu, Krishnan Ravichandran, Zakir Ahmed, Nachiket V. Desai, Nicolas Butzen, James W. Tschanz, Vivek De
A 0.76V Vin Triode Region 4A Analog LDO with Distributed Gain Enhancement and Dynamic Load-Current Tracking in Intel 4 CMOS Featuring Active Feedforward Ripple Shaping and On-Chip Power Noise Analyzer. ISSCC (2022)
Nachiket V. Desai, Harish K. Krishnamurthy, Suhwan Kim, Christopher Schaef, Sheldon Weng, Beomseok Choi, William J. Lambert, Krishnan Ravichandran, James W. Tschanz, Vivek De
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 (2022)
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
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 57 (4) (2022)
Nachiket V. Desai, Harish K. Krishnamurthy, William 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
A 32A 5V-Input, 94.2% Peak Efficiency High-Frequency Power Converter Module Featuring Package-Integrated Low-Voltage GaN NMOS Power Transistors. VLSI Circuits (2021)
Xiaosen Liu, Harish K. Krishnamurthy, Taesik Na, Sheldon Weng, Khondker Z. Ahmed, Christopher Schaef, Krishnan Ravichandran, James W. Tschanz, Vivek De
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 56 (8) (2021)
Raghavan Kumar, Xiaosen Liu, Vikram B. Suresh, Harish K. Krishnamurthy, Sudhir Satpathy, Mark A. Anders, Himanshu Kaul, Krishnan Ravichandran, Vivek De, Sanu K. Mathew
A Time-/Frequency-Domain Side-Channel Attack Resistant AES-128 and RSA-4K Crypto-Processor in 14-nm CMOS. IEEE J. Solid State Circuits 56 (4) (2021)
Khondker Zakir Ahmed, Nachiket V. Desai, Harish K. Krishnamurthy, Sheldon Weng, Xiaosen Liu, Krishnan Ravichandran, James W. Tschanz, Vivek De
A Dual-Input, Digital Hybrid Buck-LDO System Featuring Fast Load Transient Response, Zero-Wire Current Handover & Input PDN Resonance Reduction. VLSI Circuits (2021)
Suhwan Kim, Harish Krishnamurthy, Sally Amin, Sheldon Weng, Jin Feng, Huong Do, Kaladhar Radhakrishnan, Krishnan Ravichandran, James W. Tschanz, Vivek De
A 1S Direct-Battery-Attach Integrated Buck Voltage Regulator with 5-Stack Thin-Gate 22nm FinFET CMOS Featuring Active Voltage Balancing and Cascaded Self-Turn-ON Drivers. VLSI Circuits (2021)
Nachiket V. Desai, Harish K. Krishnamurthy, Khondker Zakir Ahmed, Sheldon Weng, Suhwan Kim, Xiaosen Liu, Huong Do, Kaladhar Radhakrishnan, Krishnan Ravichandran, James W. Tschanz, Vivek De
Peak-Current-Controlled Ganged Integrated High-Frequency Buck Voltage Regulators in 22nm CMOS for Robust Cross-Tile Current Sharing. ISSCC (2021)
Zakir Zakir Ahmed, Harish K. Krishnamurthy, Sheldon Weng, Xiaosen Liu, Christopher Schaef, Nachiket V. Desai, Krishnan Ravichandran, James W. Tschanz, Vivek De
An Autonomous Reconfigurable Power Delivery Network (RPDN) for Many-Core SoCs Featuring Dynamic Current Steering. VLSI Circuits (2020)
Harish K. Krishnamurthy, Khondker Zakir Ahmed, Xiaosen Liu, Nachiket V. Desai, Suhwan Kim, Nicolas Butzen, Sally Amin, Sheldon Weng, Krishnan Ravichandran, James W. Tschanz, Vivek De
Digital Control of Switching and Linear Integrated Voltage Regulators. CICC (2020)
Raghavan Kumar, Xiaosen Liu, Vikram B. Suresh, Harish Krishnamurthy, Mark A. Anders, Himanshu Kaul, Krishnan Ravichandran, Vivek De, Sanu Mathew
A SCA-Resistant AES Engine in 14nm CMOS with Time/Frequency-Domain Leakage Suppression using Non-Linear Digital LDO Cascaded with Arithmetic Countermeasures. VLSI Circuits (2020)
Khondker Zakir Ahmed, Harish K. Krishnamurthy, Charles Augustine, Xiaosen Liu, Sheldon Weng, Krishnan Ravichandran, James W. Tschanz, Vivek De
A Variation-Adaptive Integrated Computational Digital LDO in 22-nm CMOS With Fast Transient Response. IEEE J. Solid State Circuits 55 (4) (2020)
Dileep Kurian, Tanay Karnik, Saksham Soni, Saransh Chhabra, Suhwan Kim, Jaykant Timbadiya, Ankit Gupta, Krishnan Ravichandran, Mukesh Bhartiya, Angela Nicoara
Self-Powered IOT System for Edge Inference. ISQED (2020)
Xiaosen Liu, Harish K. Krishnamurthy, Claudia P. Barrera, Jing Han, Rajasekhara M. Narayana Bhatla, Scott Chiu, Khondker Zakir Ahmed, Krishnan Ravichandran, James W. Tschanz, Vivek De
A Dual-Rail Hybrid Analog/Digital LDO with Dynamic Current Steering for Tunable High PSRR and High Efficiency. VLSI Circuits (2020)
Christopher Schaef, Sheldon Weng, Beomseok Choi, William Lambert, Kaladhar Radhakrishnan, Krishnan Ravichandran, James W. Tschanz, Vivek De
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 (2019)
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 Do, William Lambert
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 54 (12) (2019)
Pascal Andreas Meinerzhagen, Carlos Tokunaga, Andres Malavasi, Vaibhav A. Vaidya, Ashwin Mendon, Deepak Mathaikutty, Jaydeep Kulkarni, Charles Augustine, Minki Cho, Stephen T. Kim, George E. Matthew, Rinkle Jain, Joseph F. Ryan, Chung-Ching Peng, Somnath Paul, Sriram R. Vangal, Brando Perez Esparza, Luis Cuellar, Michael Woodman, Bala Iyer, Subramaniam Maiyuran, Gautham N. Chinya, Xiang Zou, Yuyun Liao, Krishnan Ravichandran, Hong Wang, Muhammad M. Khellah, James W. Tschanz, Vivek De
An Energy-Efficient Graphics Processor in 14-nm Tri-Gate CMOS Featuring Integrated Voltage Regulators for Fine-Grain DVFS, Retentive Sleep, and ${V}_{\text{MIN}}$ Optimization. IEEE J. Solid State Circuits 54 (1) (2019)
Khondker Zakir Ahmed, Harish K. Krishnamurthy, Charles Augustine, Xiaosen Liu, Sheldon Weng, Krishnan Ravichandran, James W. Tschanz, Vivek De
A Variation-Adaptive Integrated Computational Digital LDO in 22nm CMOS with Fast Transient Response. VLSI Circuits (2019)
Christopher Schaef, Nachiket V. Desai, Harish Krishnamurthy, Sheldon Weng, Huong Do, William Lambert, Kaladhar Radhakrishnan, Krishnan Ravichandran, James W. Tschanz, Vivek De
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 (2019)
Xiaosen Liu, Harish K. Krishnamurthy, Taesik Na, Sheldon Weng, Khondker Z. Ahmed, Krishnan Ravichandran, James W. Tschanz, Vivek De
A Modular Hybrid LDO with Fast Load-Transient Response and Programmable PSRR in 14nm CMOS Featuring Dynamic Clamp Tuning and Time-Constant Compensation. ISSCC (2019)
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
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 (2018)
Xiaosen Liu, Krishnan Ravichandran, Edgar Sánchez-Sinencio
A Switched Capacitor Energy Harvester Based on a Single-Cycle Criterion for MPPT to Eliminate Storage Capacitor. IEEE Trans. Circuits Syst. I Regul. Pap. (2) (2018)
Mohamed Abouzied, Hatem Osman, Vaibhav A. Vaidya, Krishnan Ravichandran, Edgar Sánchez-Sinencio
An Integrated Concurrent Multiple-Input Self-Startup Energy Harvesting Capacitive-Based DC Adder Combiner. IEEE Trans. Ind. Electron. 65 (8) (2018)
Harish Kumar Krishnamurthy, Sheldon Weng, George E. Matthew, Nachiket V. Desai, Ruchir Saraswat, Krishnan Ravichandran, James W. Tschanz, Vivek De
A Digitally Controlled Fully Integrated Voltage Regulator With 3-D-TSV-Based On-Die Solenoid Inductor With a Planar Magnetic Core for 3-D-Stacked Die Applications in 14-nm Tri-Gate CMOS. IEEE J. Solid State Circuits 53 (4) (2018)
Chao-Jen Huang, Yao-Sheng Ma, Wen-Hau Yang, Yen-Ting Lin, Chun-Chieh Kuo, Ke-Horng Chen, Hsiao-Jung Liu, Pei-Shan Yu, Fang-Chih Chu, Ching-Ju Lin, Hong-Wen Huang, Kuo-Chih Hung, Yuan-Hua Chu, Ying-Hsi Lin, Suhwan Kim, Krishnan Ravichandran
A 99.2% Tracking Accuracy Single-Inductor Quadruple-Input-Quadruple-Output Buck-Boost Converter Topology with Periodical Interval Perturbation and Observation MPPT. A-SSCC (2018)
Harish Kumar Krishnamurthy, Vaibhav A. Vaidya, Pavan Kumar, Rinkle Jain, Sheldon Weng, Stephen T. Kim, George E. Matthew, Nachiket V. Desai, Xiaosen Liu, Krishnan Ravichandran, James W. Tschanz, Vivek De
A Digitally Controlled Fully Integrated Voltage Regulator With On-Die Solenoid Inductor With Planar Magnetic Core in 14-nm Tri-Gate CMOS. IEEE J. Solid State Circuits 53 (1) (2018)
Pascal Meinerzhagen, Carlos Tokunaga, Andres Malavasi, Vaibhav A. Vaidya, Ashwin Mendon, Deepak Mathaikutty, Jaydeep Kulkarni, Charles Augustine, Minki Cho, Stephen T. Kim, George E. Matthew, Rinkle Jain, Joseph F. Ryan, Chung-Ching Peng, Somnath Paul, Sriram R. Vangal, Brando Perez Esparza, Luis Cuellar, Michael Woodman, Bala Iyer, Subramaniam Maiyuran, Gautham N. Chinya, Chris Zou, Yuyun Liao, Krishnan Ravichandran, Hong Wang, Muhammad M. Khellah, James W. Tschanz, Vivek De
An energy-efficient graphics processor featuring fine-grain DVFS with integrated voltage regulators, execution-unit turbo, and retentive sleep in 14nm tri-gate CMOS. ISSCC (2018)
Harish Kumar Krishnamurthy, Vaibhav A. Vaidya, Sheldon Weng, Krishnan Ravichandran, Pavan Kumar, Stephen T. Kim, Rinkle Jain, George E. Matthew, Jim Tschanz, Vivek De
20.1 A digitally controlled fully integrated voltage regulator with on-die solenoid inductor with planar magnetic core in 14nm tri-gate CMOS. ISSCC (2017)
Mohamed Abouzied, Krishnan Ravichandran, Edgar Sánchez-Sinencio
A Fully Integrated Reconfigurable Self-Startup RF Energy-Harvesting System With Storage Capability. IEEE J. Solid State Circuits 52 (3) (2017)
Minki Cho, Stephen T. Kim, Carlos Tokunaga, Charles Augustine, Jaydeep P. Kulkarni, Krishnan Ravichandran, James W. Tschanz, Muhammad M. Khellah, Vivek De
Postsilicon Voltage Guard-Band Reduction in a 22 nm Graphics Execution Core Using Adaptive Voltage Scaling and Dynamic Power Gating. IEEE J. Solid State Circuits 52 (1) (2017)
Minki Cho, Stephen T. Kim, Carlos Tokunaga, Charles Augustine, Jaydeep P. Kulkarni, Krishnan Ravichandran, James W. Tschanz, Muhammad M. Khellah, Vivek De
8.4 Post-silicon voltage-guard-band reduction in a 22nm graphics execution core using adaptive voltage scaling and dynamic power gating. ISSCC (2016)
Xiaosen Liu, Lilly Huang, Krishnan Ravichandran, Edgar Sánchez-Sinencio
A Highly Efficient Reconfigurable Charge Pump Energy Harvester With Wide Harvesting Range and Two-Dimensional MPPT for Internet of Things. IEEE J. Solid State Circuits 51 (5) (2016)
Stephen T. Kim, Yi-Chun Shih, Kaushik Mazumdar, Rinkle Jain, Joseph F. Ryan, Carlos Tokunaga, Charles Augustine, Jaydeep P. Kulkarni, Krishnan Ravichandran, James W. Tschanz, Muhammad M. Khellah, Vivek De
Enabling Wide Autonomous DVFS in a 22 nm Graphics Execution Core Using a Digitally Controlled Fully Integrated Voltage Regulator. IEEE J. Solid State Circuits 51 (1) (2016)
Suvankar Biswas, Lilly Huang, Vaibhav A. Vaidya, Krishnan Ravichandran, Ned Mohan, Sairaj V. Dhople
Universal Current-Mode Control Schemes to Charge Li-Ion Batteries Under DC/PV Source. IEEE Trans. Circuits Syst. I Regul. Pap. (9) (2016)
Pavan Kumar, Vaibhav A. Vaidya, Harish Krishnamurthy, Stephen T. Kim, George E. Matthew, Sheldon Weng, Bharani Thiruvengadam, Wayne Proefrock, Krishnan Ravichandran, Vivek De
70% efficient 500MHz fully integrated digitally controlled 3-level buck voltage regulator with on-die high density MIM capacitor in 22nm tri-gate CMOS. CICC (2015)
Rinkle Jain, Stephen T. Kim, Vaibhav A. Vaidya, Krishnan Ravichandran, James W. Tschanz, Vivek De
Conductance Modulation Techniques in Switched-Capacitor DC-DC Converter for Maximum-Efficiency Tracking and Ripple Mitigation in 22 nm Tri-Gate CMOS. IEEE J. Solid State Circuits 50 (8) (2015)
Stephen T. Kim, Yi-Chun Shih, Kaushik Mazumdar, Rinkle Jain, Joseph F. Ryan, Carlos Tokunaga, Charles Augustine, Jaydeep P. Kulkarni, Krishnan Ravichandran, James W. Tschanz, Muhammad M. Khellah, Vivek De
8.6 Enabling wide autonomous DVFS in a 22nm graphics execution core using a digitally controlled hybrid LDO/switched-capacitor VR with fast droop mitigation. ISSCC (2015)
Harish Krishnamurthy, Vaibhav A. Vaidya, Pavan Kumar, George E. Matthew, Sheldon Weng, Bharani Thiruvengadam, Wayne Proefrock, Krishnan Ravichandran, Vivek De
A 500 MHz, 68% efficient, fully on-die digitally controlled buck Voltage Regulator on 22nm Tri-Gate CMOS. VLSIC (2014)
Rinkle Jain, Stephen T. Kim, Vaibhav A. Vaidya, James W. Tschanz, Krishnan Ravichandran, Vivek De
Conductance modulation techniques in switched-capacitor DC-DC converter for maximum-efficiency tracking and ripple mitigation in 22nm Tri-gate CMOS. CICC (2014)