Low interference emissions thanks to the dual silent switcher series

Ana­log Devices (ADI) intro­duced the LT8650S, LT8652S and LT8653S dual-chan­nel 4A/8.5A/2A syn­chro­nous step-down Silent Switch­er® con­vert­ers tar­get­ed for auto­mo­tive, com­mu­ni­ca­tions and sol­id state dri­ve pow­er sup­plies. The pro­pri­etary Silent Switch­er 2 archi­tec­ture along with spread spec­trum fre­quen­cy mod­u­la­tion ensures PCB lay­out robust­ness to achieve ultra-low EMI per­for­mance that eas­i­ly meets CISPR25 emissions.

The LT8650S, LT8652S and LT8653S are also dif­fer­en­ti­at­ed with their stack­able-friend­ly out­puts for high­er cur­rent appli­ca­tions.  Out­puts can be par­al­leled to scale up or down the out­put cur­rent based on the sys­tem need while opti­miz­ing ther­mal per­for­mance. This also helps to min­i­mize inven­to­ry and qual­i­fi­ca­tion time with a sin­gle device. For exam­ple, the LT8652S pro­vides 8.5A DC from each chan­nel simul­ta­ne­ous­ly or up to 12A on either chan­nel. Syn­chro­niz­ing two LT8652S chips can achieve a 4‑phase, 34A supply.