Power Management Solution for SSD with Three Power Pass Switches and I2C Interface

The SM6742 consists of four internal-switch buck regulators that are all synchronous with three power pass switches, one internal isolation switch and boost converter. All output voltages of the buck and boost regulators are programmable using I2C serial interface, and all output voltages of the buck, boost regulators and power path switches are alive in regular sequence as soon as the input supply is applied. All converters support power saving mode for high efficiency at light load and 2 MHz fixed switching frequency operation at heavy load. The high switching frequency of all the converters make it possible to use ultra-small inductors and ceramic capacitors. The SM6742 provides power-off sequence for SSD applications.

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