Stackable parallel connection for high current applications


Analog Devices (ADI) announced today the launch of the LT8650S/LT8652S/LT8653S, a new family of dual-channel 4/8.5/2A synchronous step-down Silent Switcher® converters for automotive, telecommunications, and solid-state drive (SSD) power supplies.

The LT8650S/LT8652S/LT8653S meet CISPR25 emissions requirements with Silent Switcher 2 technology and integrated bypass capacitors. They feature ultra-low quiescent current Burst Mode® for light-load operation. The adjustable and synchronizable frequency range is 300kHz to 3MHz.

Another distinguishing feature of the LT8650S, LT8652S, and LT8653S is their stackable output configuration for higher-current applications. Outputs can be paralleled to optimize thermal performance while increasing or decreasing output current depending on system requirements. This also helps minimize inventory and quality inspection time with a single device.

Specifically, the LT8652S can simultaneously deliver 8.5 A of DC from each channel, or up to 12 A of peak current from each channel. Synchronizing two LT8652S chips can provide a four-phase, 34 A current supply.