LT8705 Datasheet PDF

●The LT8705EFE#PBF is a 80V synchronous 4-switch Buck Boost DC/DC Controller operates from input voltages above, below or equal to the output voltage. The part has integrated input current, input voltage, output current and output voltage feedback loops. With a wide 2.8 to 80V input and 1.3 to 80V output range, the LT8705 is compatible with most solar, automotive, telecom and battery-powered systems. The LT8705 includes servo pins to indicate which feedback loops are active. The MODE pin selects among Burst Mode®® operation, discontinuous or continuous conduction mode at light loads. Additional features include a 3.3V/12mA LDO, a synchronizable fixed operating frequency, onboard gate drivers, adjustable UVLO, along with input and output current monitoring with programmable maximum levels.

● Single inductor allows VIN above, below or equal to regulated VOUT

● VIN range 2.8 (Need EXTVCC >6.4V) to 80V

● 1.3 to 80V VOUT range

● Quad N-channel MOSFET gate drivers

● Up to 98% efficiency synchronous rectification

● Input and output current monitor pins

● 100 to 400kHz Synchronizable fixed frequency

● Integrated input current, input voltage, output and output voltage feedback loops

● Clock output usable to monitor die temperature