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LM10503/4/6 power management ICs power supply rails in solid state drives

TI’s new PMICs integrate three programmable 2.25-MHz DC/DC step-down converters with 95-percent peak efficiency that support core processor, memory and I/O voltages, along with a general-purpose, 3-V, 250-mA LDO regulator for host controller reference. Each PMIC functions cooperatively with a controller IC to optimize the supply voltage for low power conditions and features a deep sleep mode option that lowers the core ASIC voltage and turns off the Flash and input/output rails to obtain maximum system efficiency. The LM10504 and LM10506 also include power-down data protection that ensures that the SSD controller completes the writing operation during unexpected power failure.