• 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

○ Dual-level OCP with average current and

pulse-by-pulse peak current limit, also provides

Short Circuit Protection (SCP)

○ Selectable OCP response with either hiccup or

constant current mode

○ Negative pulse-by-pulse peak current limit