Features

? Single inductor 4-switch buck-boost controller

? On-the-fly bidirectional operation with independent

control of voltage and current on both ends

? Proprietary algorithm for smoothest mode transition

? MOSFET drivers with adaptive shoot-through

protection

? Wide input voltage range: 4.5V to 80V

? Wide output voltage range: 0.8V to 80V

? Supports startup into pre-biased rails

? Programmable frequency: 100kHz to 600kHz

? Supports parallel operation current sharing with

cascade phase interleaving

? External sync with clock out or frequency dithering

? External bias for higher efficiency for 8V to 36V input

? Output and input current monitor

? Selectable PWM mode operation between

PWM/DE/Burst modes

? Accurate EN/UVLO and PGOOD indicator

? Low shutdown current: 2.7μA

? Complete protection: OCP, SCP, OVP, OTP, and UVP