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have to be able to operate at -55C. Functionally, the TPS26400PWPR does everything i need. The nominal input voltage is 28V The default window of 15V to 33V is perfect the load current is ~ 1A
I mean to screen the TPS26400PWPR for a subset of devices that will operate at -55C. I've reviewed the list you pointed me to. the only possibilities are the LM7480 or LM7481. Neither seem to match the functionality of the TPS26400PWPR.
