Hi John,
The problem that the TPS62051 power chip cannot output normally has been solved: pull the LBI pin high; LBI pin, for fixed output can be directly grounded, such as TPS62052, TPS62054, TPS62056; LBI pin, for the adjustable output needs to be pulled…
Dear Peter,
To begin with, If your application requires a 1.8V, you can use the TPS62054, which has a fixed output voltage of 1.8V, and cut off the FB resistors and Cff.
Moreover, to reduce the ripple Current/Voltage, please refer to page 13 and 14 from…