LTC3310SRecommended for New Designs
The LTC3310S is a very small, low noise, monolithic step-down DC/DC converter capable of providing up to 10A of output current from a 2.25V to 5.5V input...
Datasheet LTC3310S on Analog.com
Hi Marty M, I'm an FAE closely working to the questioner. He's essentially asking if '1.5mm x 1.5mm' part mentioned in your answer was just a typo, which contradicts to what you say at first place. Just double checking.