Which works better when dealing with cold crank condition in automotives: LT1912 36V, 2A, 500kHz step-down switching regulator or MAX15005 current-mode controller operating from 4.5V to 40V? Please help.

Hi Rajneesh,

This article might interest you:

Managing cold cranking in automotives

Rajneesh, I do not see the relevance of either the switching regulator or the current mode control with cold cranking amperes? CCI is referred to the battery's capability to supply the needed cranking amperes to the starter motor in an automobile when cold. This is a battery specification and has nothing to do with the switching regulator or the control topology like current mode control. Now if you want to talk about how to charge the this lead acid battery, we can discuss the possibilities.

Please let me know as to what you are looking for.

Ram