60V input, 1.5A switch — what this buck covers
The LT1956EFE#TRPBF is a step-down (buck) switching regulator from Analog Devices that accepts an input from 5.5V to 60V and delivers an adjustable output from 1.219V up to 54V via its internal 1.5A switch.
It is ROHS3 compliant.
Package and thermal: the exposed-pad detail
The 16-TSSOP with exposed pad (16-TSSOP-EP) is the key assembly detail. The part is surface-mount only, and the tape-and-reel suffix (#TRPBF) means it ships on a 13-inch reel; cut-tape quantities are also available for prototyping.