Linear control apparatus buck voltage regulator on-chip boot

Linear Technology Corporation (Linear Technology) has introduced a high voltage current-mode buck controller - LT3800. The device features excellent line and FDS6672A datasheet and load regulation and FDS6672A price and fast transient response without having to start the auxiliary DC / DC regulators can work. An integrated voltage regulator IC directly from input supply to the power supply.

LT3800 60V power supply with 4V to work in the load currents up to 10A output voltage can be adjusted in the 1.23V to 36V. By the maximum gate-source "ON" voltage is synchronized to drive N-channel MOSFET, the controller efficiency as high as 94%, while the 60V input and FDS6672A suppliers and can convert the 12V at 36W output. In addition, LT3800 also has a burst mode (Burst Mode) work can be no load quiescent current to less than 100μA, and car maintenance needs of the general characteristics of the power. LT3800 for 2V and 42V automotive systems, 48V telecom equipment, power supply, avionics and industrial control systems.

LT3800 operates from 200kHz fixed frequency. The device features using reverse current against light loads to improve efficiency. If the inductor current approaches zero, this feature may prohibit simultaneous switching. Another feature of the LT3800 adaptive non overlap control. Non-overlap control keeps a constant dead time (dead-time), thereby preventing connectivity switch current, is not subject to the external MOSFET switch type, size or influence the work environment.

LT3800 16-pin thermally enhanced TSSOP package, rated operating temperature of -40 ℃ to 125 ℃. 1,000-piece quantities starts at $ 3.10 per tablet.