ZHCSJM5D September 2009 – April 2019 TPS61093
PRODUCTION DATA.
If the overload current passing through the isolation switch is above the overload limit (IOL) for 3-μs (typical), the TPS61093 is switched off until the fault is cleared and the EN pin toggles. The function only is triggered 52 ms after the IC is enabled.
To prevent the PWM switch and the output capacitor from exceeding maximum voltage ratings, an overvoltage protection circuit turns off the boost switch as soon as the output voltage at the VO pin exceeds the OVP threshold. Simultaneously, the IC opens the isolation switch. The regulator resumes PWM switching after the VO pin voltage falls 0.6 V below the threshold.