ZHCSBB4B July 2013 – June 2017 TPS61197
PRODUCTION DATA.
If the rectifier Schottky diode is shorted, the reverse current from output capacitor to ground is very large when the switch MOSFET is turned on. The TPS61197 uses a secondary current limit threshold of 800 mV across the current sense resistor to permanently disable the switching if the threshold is touched.