LT8392 60V Synch 4-Switch Buck-Boost Controllers Analog Devices Inc. LT8392 60V Synchronous 4-Switch Buck-Boost Controller with Spread Spectrum regulates output voltage, input, or output current from input voltage above, below, or equal to the output voltage. The LT8392 offers a proprietary peak-buck peak-boost current mode control scheme that allows adjustable, synchronisable 150kHz to 650kHz fixed-frequency operation or internal ±15% triangle spread-spectrum operation for low EMI.