Hi sir,
A customer want to select a boost/buck converter have the VIN_start up less than 4.5V.
Input 4.5V~36V
output 5V
I found TPS55065-Q1 looks good.
can TPS55065-Q1 meet my application?
I read the datasheet. V(driver) Start-up condition voltage= Max 5V.
if the Input Operating Range is 1.5V, can this device start up?
But from the description of the chapter 7.4.5 in datasheet, it should be MIN 5V.
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7.4.5 Extension of the Input Voltage Range on V(driver)
To ensure a stable 5-V output voltage with the output load in the specified range, the V(driver) supply must be greater than or equal to 5 V for greater than 1 ms (typical). After a period of 1 ms (typical), the logic may be supplied by the VOUT regulator and the V(driver) supply may be capable of operating down to 1.5 V.
The switched-mode regulator does not start at V(driver) less than 5 V.
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can you clarify it? or give me some suggestion on product selection.
Thanks.
Regards,
