What is a Buck or Step-Down Converter?
A buck converter, also known as a step-down converter, is a DC/DC power converter that provides voltage step down and current step up. The converter reduces the voltage when the power source has a higher voltage than Vin. A buck converter generally provides the most efficient solution with the smallest external components.
Unsure if a low powered linear regulator or highly efficient switching regulator is a better option for your design? Learn more about Linear vs. Switching Regulators.
The ISL85003EVAL2Z and ISL85003AEVAL2Z evaluation boards are used to evaluate the performance of the ISL85003 and ISL85003A high efficiency 3A synchronous buck regulators.
What is a Buck-Boost Converter?
A buck-boost converter generates an output voltage either greater or less than the input voltage. The advantage of using a buck-boost solution is regulating the output voltage over the full power source voltage range. Buck-boost converter solutions usually have lower efficiency and a larger footprint than buck converter solutions.
The ISL9120IIx-EVZ (ISL9120IIN-EVZ, ISL9120IIA-EVZ) and ISL9120IRx-EVZ evaluation platforms allow quick evaluation of the high performance features of the ISL9120 and ISL9120IR buck-boost regulator.
The ISL8018 (8A) and ISL8003X (3A) synchronous buck converters step-down 5V rails to point-of-load inputs as low as 0.6V for FPGAs, DSPs and microprocessors.
The ISL850xx synchronous buck regulators support input voltages of 3.8V to 18V and a wide output current range, offering designers a complete portfolio of devices with high efficiency and reliable performance.
The ISL91127 and ISL91128 3A and ISL91107 2A buck-boost regulators offer up to 96% efficiency and low 30µA quiescent current in a compact 4mm x 4mm footprint.