2.5V DC to DC Single Output Power Supply for Cellular Phone

Adding Hysteresis to Low-Battery Input on the TPS6205x. The LBI input for the TPS6205x converter has an internal hysteresis of 15mV, But this is inadequate for some applications. The TPS6205x is a synchronous, Step-down converter with a low-battery input that produces a signal when the input voltage drops below a set threshold