Monolithic Power Systems, Inc. is an American, publicly traded company headquartered in Kirkland, Washington.

Prior to the founding of the corporation, Hsing worked as a Senior Silicon Technology Developer at several analog integrated circuit companies.

[9] [10] The company also published its annual ESG report [11] and launched public commitments to reduce Scope 1 and 2 greenhouse gas emissions by 40% by 2030 and to be powered globally by 75% of Renewable Electricity by 2026.

It offers energy-efficient DC to DC converter ICs that are used to convert and control voltages of various electronic systems, such as portable electronic devices, wireless LAN access points, computers, set top boxes, displays, automobiles, and medical equipment.

In addition, Monolithic Power Systems supports the electrification of transportation and manufactures class D Audio Amplifier products.