Charger IC Lithium Ion/Polymer I2C Controlled, 1- to 4-Cell, 3-A Buck Battery Charger with Dual-Input Selector, MPPT for Solar Panels and Integrated ADC 29-VQFN-HR (4x4)

Battery Management Stand-alone or IC controlled 70-V bidirectional buck-boost charge controller with MPPT 36-VQFN -40 to 85 1 595-BQ25756RRVR https://www.mouser.co.uk/ProductDetail/Texas-Instruments/BQ25756RRVR?qs=HoCaDK9Nz5ckDWwb4xOATA%3D%3D Texas Instruments BQ25756RRVR