We have used this DC DC converter for 3V battery input and 3.3V Output from the TPS61070. We have connected the Slide switch in EN pin to On and OFF the DCDC converter.
When EN goes Low/ 0V, the DC DC converter is not going off state. Still I could see the 3.3V output at Vout. Below is the Schematic of our application
Kindly look into this and support us.