The UL94 grade for the LTM4624 is V-0.
The flammability rating for the LTM4624 is UL-94 qualifed!
I can confirm that the LTM4624 schematics (U45, U50) look ok.
I have another question does buck regulators have a voltage dropout requirement? in order for it to regulate the voltage effectively? Eg: Is the switching regulator am to give me a +5V regulated voltage from Vin of +5.25V to 6V? I have been using…