EVAL-LT8292-AZ

EVAL-LT8292-AZ evaluation circuit features the LT®8292 parallelable 4-switch synchronous buck-boost controller. The LT8292 regulates the output voltage and output or input current from an input voltage below, equal to, or above the output voltage. With a wide 5.5V to 60V input range and a seamless transition between operating regions, the LT8292 is ideal for automotive, industrial, and telecom systems. The buck-boost peak current mode architecture allows adjustable phase-lockable 100KHz to 650KHz fixed frequency operation or internal spread spectrum operation for low Electromagnetic interference (EMI). Additionally, LT8292 features ISHARE and IGND pins, allowing for multi-IC leaderless current-sharing capabilities for higher-power applications. The EVAL-LT8292-AZ operates from 9V to 36V input voltage range and generates an output of 12V. A maximum output current of 50A allows up to 600W power delivery while achieving efficiencies that exceed 97%.

• 5V typical gate driver supply voltage
• 8.1V VIN undervoltage lockout (UVLO) falling (R9, R40 = 499Kohm, R10, R42 = 80.6Kohm)
• 96.2% typical efficiency at IOUT = 50A, VIN = 36V
• 40ns typical switching dead time at RDT1,DT2 = 0 ohm to INTVCC
• 8.5V VIN enable turn-on (EN) rising (R9, R40 = 499Kohm; R10, R42 = 80.6Kohm)
• Board utilizes two LT8292s in parallel, both set to 100KHz, to achieve high power and efficiency