Linear Technology Corp.'s high reliability (MP) grade version of the LT3845, a 4V to 60V input voltage range, low quiescent current synchronous step-down DC/DC controller, operates and is tested over a junction temperature range of -55°C to 125°C, compared to the I grade version's -40°C to 125°C operating temperature range.
The device's Burst Mode operation keeps quiescent current under 120µA in no load standby conditions, useful for extending run time in battery-powered applications. Its powerful onboard N-channel MOSFET gate drivers provide output current up to 20A at efficiencies as high as 95 percent, making it ideal for 12V and 24V automotive systems, industrial controls, heavy equipment, avionics and military systems.
The LT3845 can produce an output voltage from 1.23V to 36V. The switching frequency is programmable from 100kHz to 500kHz or can be synchronized to an external clock up to 600kHz.
Linear Technology's LT3845 Step-down DC/DC Controller
Linear Technology
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