Analog Devices LT8210 4-switch synchronous buck-boost DC/DC controllers can operate in pass-thru, forced-continuous, pulse-skipping, or burst-mode operation. Pass-thru is a feature that passes the input directly to the output when the input is within a user-programmable window. Pass-thru mode eliminates switching losses and EMI while also maximizing efficiency. For input voltages above or below the pass-thru window, the buck or boost regulation loops maintain the output at the set maximum or minimum values, respectively.

The GATEV_CC driver supply is regulated to 10.6 V to allow the use of standard-level MOSFETs and can be powered through the EXTV_CC pin for improved efficiency. The GATEV_CC regulator is back-drive-protected to ride through input brownouts while maintaining regulation. Optional reverse input protection down to -40 V can be implemented with the addition of a single N-channel MOSFET. The LT8210 includes a precision current sense amplifier that can accurately monitor and limit output or input average current.