Analog Devices, which recently acquired Linear Technology Corporation, announces LT8645S, an 8A, 65V input capable synchronous step-down switching regulator.
Its Silent Switcher 2 architecture uses two internal input capacitors as well as internal BST and INTVCC capacitors to minimize the area of the hot loops.
The improved EMI/EMC performances are not sensitive to board layout, simplifying design and reducing risk even when using two layer PC boards.
Spread spectrum frequency modulation is also available to lower EMI/EMC levels further.
The LT8645S’s synchronous rectification delivers efficiency as high as 94% with a switching frequency of 2MHz.
Its 3.4V to 65V input voltage range is interesting for dual cell transportation, 48V automotive and industrial applications.
The internal switches can deliver up to 8A of continuous output current to voltages as low as 0.97V.
The LT8645S’s Burst Mode operation offers 2.5µA of quiescent current, well suited for applications such as automotive/transportation always-on systems, which need to extend operating battery life.