Power management IC reduces size of smart appliances

ROHM SEMICONDUCTOR BD71847AMWV power management IC (PMIC) is optimized for NXP Semiconductors’ i.MX 8M mini applications processors to contribute to longer operating time and to reduce the size of smart speakers, networked audio, smart displays and other smart home appliances. Device integrates all power rails required by the processor, as well as power supplies for DDR and common system IO. Device features programmable power sequencer for flexible power control and management, seamless hardware control interface to i.MX 8M Mini, buffered sleep clock and protection functions. Customization and programmability help to shorten development time, lower system bill of materials and to minimize footprint. The PMIC integrates six dc-dc buck converter, six low drop out regulators, 1.8V/3.3V power switch for SDXC cards, 32kHz crystal driver and buffered output clock, monitoring and protection circuits, and programmable sequencer and power state control logic. The 2.7 to 5.5V input voltage range supports a variety of power sources, from single-cell Li-ion battery to USB and wall adapter.