Q: TPS61070 Reverse Polarity Protection by 581446

Hi,

Customer is using the TPS61070 off of 2 AA batteries.  They would like to know if the device has reverse polarity protection.  Can you assist?


A: Re: TPS61070 Reverse Polarity Protection by 10449The TPS61070 does NOT have built in reverse polarity protection on the input (VBAT).  The application note   

Reverse Current/Battery Protection Circuits

 

   http://focus.ti.com/lit/an/slva139/slva139.pdf  provides several methods to protect against a reverse battery input condition.