Hi All,
The TPS55065 switch-mode regulator does not start at V(driver) less than 5 V.
Once it started it can regulate 5V with input down to 1.5V
Unfortunatelly it is not an option for buck-boost requlator, because it can not able to start with 3V.
Is there an another part that can start with 3V input ?
Best regards.
Note: I have checked TPIC74100 and same situation valid for it.
I'm working with TPIC74100QPWPRQ1.
Here is same situation.
I need to work with input voltage in range 3,5...15 with 5v output.
Schematics for power source is attached.
Power supply is started just after Vin is increased more than 5.2 V.
If Vin falling below 5V TPIC74100-Q1 is turning off when current on load more that 100 mA.
In datasheet current is much more - 120-200 mA.
Can you give a reference for this situation?
