New Industry Products

Configurable, High-Frequency Sub-PMICs for Powering Latest Mobile Processors

September 19, 2019 by Paul Shepard

Dialog Semiconductor plc has introduced a new power management product family of four new sub-PMICs that claim best-in-class transient response and in-circuit digital programmability, in a smaller form factor than current market solutions. These sub-PMICs reduce solution size up to 40 percent, with less than half of the external components of previous-generation solutions.

The new product family of buck converters, which consists of the DA9217, DA9220, DA9121 and the DA9122, represents Dialog's first sub-PMIC family with a 4MHz switching frequency that reduces inductor size and height to allow use of smaller external components.

The devices are designed for ARM® Cortex™ based multi-core application processors and high-performance SoCs, FPGAs and GPUs, which enable developers to fit a 6- to 10-Amp power solution into limited board areas of next-generation devices spanning smartphones, tablets, notebooks PCs, DSLR cameras, solid state drives and more.

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The devices drive higher efficiency without sacrificing functionality, simplifying complex system sequencing with digital programmability and configurability, for a seamless interface to the system microcontroller depending on the system requirements. The devices can support a single output up to 6 Amp / 10 Amp or dual outputs up to 3 Amp /5 Amp per output, making it suited for the latest 7nm based SoCs.

Leveraging Dialog's power conversion prowess, the devices were optimized for users requiring high current with maximum efficiency. The sub-PMICs can run from a single cell Li-ion battery, 3.3V or 5V power supplies. The I2C interface enables dynamic voltage control to optimize power savings and performance, while the fault protection features also provide overvoltage, overcurrent and thermal shutdown protection.

"Designers continue to face new challenges with each passing year when it comes to power consumption and system size but are often forced to trade one feature for another," said Scott Brown, VP Marketing of Dialog's Advanced Mixed-Signal Business Group. "These new devices are addressing these challenges head on which continue to demonstrate Dialog's leadership within configurable power management solutions."