I want to relice a Buck-Boost circuit for a back-up batery, now i am using a LT8705 but this componet don't have a output pin for indicate the state (Buck or Boost). Wath component can i use for a buck-boost circuit with state output?
One of 4 mosfets always opened in BUCK, other in BOOST. You may use Buck-Boost controller with external mosfets like LTC3780 to control it state. Also you may compare input and output voltage: if Vin>Vout - Buck else - Boost.