I'm working on a new design using the TPS61202 to boost a 3.7v Lipo to 5v. The circuit seems to work great with a lipo cell, but I had one very odd and dramatic failure that has me worried. I was trying to get a more precise measurement of active current use in a typical use case and was powering the prototype from a bench power supply set at 3.7 volts with a current limit of 1A. The bench supply indicated the test was drawing about 200 mA but, as the current meter in the bench power supply was only 2 fractional digits, I added in a multimeter to get a more precise measurement. The minute I connected the multimeter the power draw jumped to 1A and TPS61202 got very hot. I disconnected the bench supply and reconnected the lipo, but the chip and the battery started to get quite hot, so I disconnected the lipo. All subsequent test indicated the TPS61202 was dead. I unsoldered the old part and put in a replacement and the prototype began working again. But, now I'm spooked about using the TPS61202 in this design without some sort of external over-current protection, such as a fuse, or a PTC. However, the design notes don't coverr this, so I wonder what would be a OK to use something like a PTC in series with the battery input to the the TPS61202. I'