Buck Regulator Ic. With their unique internal four mosfet switch combination these switching regulators can seamlessly transition from step down mode through 100 dropout operation and then to step up mode to allow a fixed output voltage even when the input voltage fluctuates above or below the output. 5v buck regulator using lm2678 the lm2678 ic is monolithic integrated circuits ic for a step down switching voltage regulator accomplished by driving up to 5a loads with characteristics like outstanding line and load regulation.
Demonstration kit circuit schematic and list of materials by chuck melchin and bill andreycak. St s monolithic step down buck converter ics offer input voltage capability up to 61 v deliver output currents up to 4 a with high switching frequency. With a 0 35ω internal power mosfet this ic can provide a max output current of 0 6a.
This broad portfolio of ics is composed of highly specialized products to meet every market requirement.
Please refer to the datasheet of this ic for more details. With over 1000 unique devices we own the industry s most comprehensive portfolio of high efficiency dc dc step down buck switching regulators. Uc3573 buck regulator pwm control ic typical application circuit for 12vdc input to 5vdc 1a output also. This extensive family of products includes all types of step down switching regulators ranging from the flexibility of a controller ic to the high integration and simplicity of a buck power module.
