Point-of-load power supplies reduce need for external components
The microBUCK® and microBRICK™ families from Vishay are integrated dc-dc regulators which operate over wide input-voltage ranges, and support high output-current requirements up to 40 A.
Vishay supplies two families of integrated dc-dc regulators which provide a ready-made solution for point-of-load (PoL) power supplies.Â
The microBUCK and microBRICK PoL solutions offer high efficiency while reducing costs. Each family comprises a large portfolio of high-density PoL power supplies with common pin-outs, allowing designers to scale for the best combination of cost and performance.Â
The microBUCK regulators consist of a PoL regulator and two integrated MOSFETs. The microBRICK regulators contain a PoL regulator, two integrated MOSFETs, and an inductor.Â
Housed in a 5 mm x 5 mm PowerPAK® package, the SiC47x microBUCK regulators operate over an input-voltage range of 4.5 V to 55 V, and the SiC46x have an input-voltage range of 4.5 V to 60 V.Â
The microBUCK SiC43x have a narrower input-voltage range of 4.5 V to 24/28 V, and are housed in a 4 mm x 4 mm PowerPAK package. SiC45x regulators in a 5Â mm x 5Â mm or 5Â mm x 7 mm PowerPAK package have an input-voltage range of 4.5 V to 20 V, and, in the case of the SiC450, a maximum output current as high as 40 A.Â
The microBRICK regulators are housed in a larger 10 mm x 6 mm PowerPAK package. The SiC967 has an input-voltage range of 4.5 V to 60 V and a maximum output current of 6 A. The SiC931 operates over a 4.5 V to 18 V range and has a maximum output of 20 A. The SiC951 produces an output of up to 25 A from an input ranging between 4.5 V and 20 V.