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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 40V

?Wide output voltage range: 0.8V to 40V

? Supports pre-biased output with SR soft-start

? 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 supports 5V - 36V

input

? Output and input current monitor

? Selectable PWM mode operation between

PWM/DE/Burst modes

? Accurate EN/UVLO and PGOOD indicator

? Low shut down current: 2.7μA

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

? Dual-level OCP protection with average current

and pulse-by-pulse peak current limit

? Selectable OCP response with either hiccup or

constant current mode

? Negative pulse-by-pulse peak current limit