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Keith Szolusha - Applications Engineering Section Leader
Keith Szolusha has worked for Linear for over 15 years as an applications engineer and now as an applications engineering section leader that manages a small team of applications engineers. His primary responsibilities include applications design and testing for LED drivers, and buck-boost voltage regulators and battery chargers. His work on LED drivers includes high current automotive applications, flicker-free PWM dimming, EMI testing and reduction, and exploring new topologies and functions. He has over fifty publications in LT Journal and trade magazines and
7 DC/DC converter and LED driver patents granted or pending.
Keith graduated from Massachusetts Institute of Technology (MIT) in Cambridge, MA with his bachelors and masters degrees in electrical engineering.
Publications
| Type |
Title |
Date ▴ |
| LT Journal |
60V Synchronous, Low EMI Buck-Boost for High Power and High Efficiency |
Jan 17th, 2017 |
| Video |
Low EMI LED Driver with Synchronous Internal 2A Switches |
Nov 17th, 2016 |
| Blog |
Low EMI LED Driver Features 2A, 40V, Integrated, Synchronous Switches for Automotive Lighting |
Oct 12th, 2016 |
| Article |
Synchronous, Low EMI LED Driver Features Integrated Switches and Internal PWM |
Aug 18th, 2016 |
| LT Journal |
Synchronous, Low EMI LED Driver Features Integrated Switches and Internal PWM Dimming |
Aug 10th, 2016 |
| Article |
Create Colorful and Bright LED Light with an LED Matrix Dimmer |
Jul 11th, 2016 |
| Blog |
60V Buck-Boost LED Driver with Up to 98% Efficiency Has Internal PWM Dimming and Spread Spectrum |
Feb 26th, 2016 |
| LT Journal |
Matrix LED Dimmer Enables Accurate Color Control and Pattern Production in RGBW LEDs |
Feb 8th, 2016 |
| LT Journal |
Buck-Boost LED Driver Reaches 98% Efficiency, Features Internal PWM Dimming and Spread Spectrum without Flicker |
Feb 8th, 2016 |
| Video |
60V 8-Switch Matrix LED Dimmer |
Nov 10th, 2015 |
| LT Journal |
Control Individual LEDs in Matrix Headlights with Integrated 8-Switch Flicker-Free Driver (LT3965) |
Oct 30th, 2015 |
| LT Journal |
One LED Driver Is All You Need for Automotive LED Headlight Clusters (LT3795) |
Jul 7th, 2015 |
| LT Journal |
Can’t Find the Right Synchronous Boost LED Driver? Use a Synchronous Buck Converter Instead: Boost Mode Topology Drives 25V, 3A LEDs from 12V |
Apr 7th, 2015 |
| LT Journal |
Boost-Buck LED Driver Topology for Automotive LEDs Operates with Low Input and Output Ripple (LT3952) |
Apr 7th, 2015 |
| Video |
60V LED Driver with Internal 4A Switch for Automotive Lighting |
Mar 31st, 2015 |
| LT Journal |
Hundreds of Watts, 60V In or Out: Synchronous 4-Switch Buck-Boost Converter is Easy to Parallel to Minimize Temperature Rise |
Jan 22nd, 2015 |
| Circuit |
LT3790 240W High Efficiency Parallel Buck-Boost Regulator |
Jan 5th, 2015 |
| Video |
High Power Three-Channel LED Driver |
Oct 27th, 2014 |
| LT Journal |
High Performance Portable DC Bench Power Supply: Save Money and Free Up Bench Real Estate by Building Your Own |
Jul 1st, 2014 |
| LT Journal |
Boost-then‑Buck LED Drivers Enable Wide PWM Dimming Range with Wide-Ranging Input Voltages (LT3797) |
Apr 9th, 2014 |
| Blog |
80V Synchronous 4-Switch Buck-Boost Controller Delivers Hundreds of Watts with 99% Efficiency |
Apr 2nd, 2014 |
| Video |
Spread Spectrum Frequency Modulation Reduces Automotive LED Driver EMI |
Dec 30th, 2013 |
| Blog |
Meet Green Standards in 24VAC and 12VAC Lighting Systems: Replace Halogen Bulbs with LEDs Driven by High Power Factor, High Efficiency Converter |
Oct 17th, 2013 |
| LT Journal |
Meet Green Standards in 24VAC and 12VAC Lighting Systems: Replace Halogen Bulbs with LEDs Driven by High Power Factor, High Efficiency Converter |
Oct 9th, 2013 |
| LT Journal |
LED Driver with Integrated Spread Spectrum Reduces EMI without Adding Flicker (LT3795) |
Oct 9th, 2013 |
| Design Note |
DN521 - 80V Synchronous 4-Switch Buck-Boost Controller Delivers Hundreds of Watts with 99% Efficiency |
Sep 30th, 2013 |
| LT Journal |
Accurate PWM LED Dimming without External Signal Generators, Clocks or µControllers |
Oct 18th, 2012 |
| LT Journal |
60V, 4-Switch Synchronous Buck-Boost Controller Regulates Voltage from Wide Ranging Inputs and Charges Batteries at 98.5% Efficiency at 100W+ |
Oct 18th, 2012 |
| Video |
60V, 98% Efficient, 4-Switch Synchronous Buck-Boost Controller IC Drives LEDs, Regulates Voltage and Charges Batteries |
Mar 20th, 2012 |
| Design Note |
DN501 - 60V Buck-Boost Controller Drives High Power LEDs, Charges Batteries and Regulates Voltage with Up to 98.5% Efficiency at 100W and Higher |
Mar 9th, 2012 |
| LT Journal |
September 2009 - 4W LED Driver Includes Power Switch, Compensation Components and Schottky in 16-Pin MSOP |
Sep 1st, 2009 |
| Design Note |
DN461 - 100V Controller Drives High Power LED Strings from Just about Any Input |
Feb 20th, 2009 |
| LT Journal |
Mar 2007 - 36V Dual 1.4A Monolithic Step-Down Converter has Start-Up Tracking and Sequencing |
Jan 28th, 2008 |
| LT Journal |
Oct 2007 - 16-Channel LED Driver Drives up to 160 White LEDs with 5000:1 PWM Dimming |
Oct 16th, 2007 |
| LT Journal |
June 2006 Dual Step-Up Converter Drives White LEDs with 1000:1 PWM Dimming |
Nov 21st, 2006 |
| Design Note |
DN392 - High Voltage Buck Converters Drive High Power LEDs |
Jun 1st, 2006 |
| Design Note |
DN376 - Monolithic Converter Drives High Power LEDs |
Sep 19th, 2005 |
| Design Note |
DN373 - ThinSOT Micropower Buck Regulator Has Low Output Ripple |
Aug 10th, 2005 |
| Design Note |
DN1007 - 60V Step-Down DC/DC Converter Has Only 100µA Quiescent Current |
Mar 8th, 2005 |
| Design Note |
DN352 - 60V, 3A Step-Down DC/DC Converter Has Low Dropout and 100µA Quiescent Current |
Nov 2nd, 2004 |
| Design Note |
DN1009 - Tiny, Efficient High Power LED Camera Flash Solutions for Cell Phone Applications |
Oct 1st, 2004 |
| LT Journal |
Aug 2002 Lower the Output Voltage Ripple of Positive-to-Negative DC/DC Converters with Optimum Capacitor Hook-Up |
Aug 9th, 2004 |
| Design Note |
DN340 - DC/DC Converter Drives Lumileds White LEDs from a Variety of Power Sources |
Jun 2nd, 2004 |
| Design Note |
DN318 - Efficient Dual Polarity Output Converter Fits into Tight Spaces |
Aug 2nd, 2003 |
| Design Note |
DN317 - Boost Regulator Makes Low Profile SEPIC with Both Step-Up and Step-Down Capability |
Aug 1st, 2003 |
| LT Journal |
Mar 2003 Positive Buck Regulator Makes Negative Boost DC/DC Converter |
Mar 1st, 2003 |
| LT Journal |
Dec 2002 Tiny 1.25MHz Monolithic Boost Regulator Has 1.5A Switch and Wide Input Voltage Range |
Dec 1st, 2002 |
| Design Note |
DN287 - High Voltage Buck Regualtors provide High Current, Low Profile Power Solutions for FireWire Peripherals |
Jun 1st, 2002 |
| LT Journal |
May 2002 Space Saving Dual Output ±5V High Current Power Supply Requires Only One 1.25MHz Switcher and One Magnetic Component |
May 1st, 2002 |
| Design Note |
DN271 - Tiny Step-Up/Step-Down Power Supply Delivers 3.3V at 1.3A in Battery-Powered Devices |
Nov 1st, 2001 |
| Design Note |
DN255 - LT1619: Tiny Boost Controller Provides Efficient Solutions for Low Voltage Inputs |
Apr 2nd, 2001 |
