I have a circuitry that I need to power up with lipo battery. I need to regulate battery to 3.3V with buck-boost converter, since LDO can not be able to provide required current output and causes heating problem etc. In order to safely work with lipo, I need to disconnect the load when battery drops to 3.1-3.2 V. Therefore I checked for the buck-boost converters with UVLO property but I could not be able find buck-boost converter with 3.1V minimum Input Voltage. Hence, I wonder how appropriate to plug a simple diode between input of the buck-boost converter and Positive terminal of the battery for establishing 0.7V Voltage drop in order to being used with 2.5V minimum Input Voltage Buck-Boost Converters?
Datasheet of the Buck Boost Converter I am planning to use. (https://www.ti.com/lit/ds/symlink/tps63050.pdf?ts=1596197768219&ref_url=https%253A%252F%252Fwww.ti.com%252Fpower-management%252Fnon-isolated-dc-dc-switching-regulators%252Fbuck-boost-inverting%252Fbuck-boost-inverting-split-rail-converters-integrated-switch%252Fproducts.html)