SNVSC24 April 2021 LP8758-EA
The LP8758-xx devices are a family of configurable step-down DC-DC converters with four converter cores. The LP8758-xx devices are ideally suited for systems powered from 2.5-V to 5.5-V supply voltage. In LP8758-EA the cores are configured for a four single-phase configuration. The LP8758-EA is well suited for space-constrained applications where high efficiency is required at low output voltages. Typical applications include network interface cards, modem cards, smart phones and mobile devices, solid-state drives (SSDs), systems-on-a-chip (SoCs), ASICs, and low power processors.
There are two modes of operation for the converter cores, depending on the output current required: pulse-width modulation (PWM) and pulse-frequency modulation (PFM). The cores operate in PWM mode at high load currents of approximately 600 mA or higher. Lighter output current loads cause the converter cores to automatically switch into PFM mode for reduced current consumption and a longer battery life when forced PWM mode is disabled. Additional features include soft-start, undervoltage lockout, overload protection, thermal warning, and thermal shutdown.