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Intersil announces 15A, 42V analogue power module

Intersil has launched the first 42V single-channel DC/DC step-down power module that delivers up to 15A of continuous current.

The ISL8215M operates from a single wide input voltage range that includes industry standard 12V, 18V, and 24V intermediate bus power rails. It is able to offer adjustable output voltages from 0.6V to 12V, and provides a power density of 60mA/mm2 in a 13mm x 19mm package.

Its 96.5% peak efficiency drives point-of-load (POL) conversions for FPGAs, DSPs and MCUs in industrial, medical, RF communications, after-market automotive, and portable equipment that use Li-ion batteries.

A complete DC-to-DC power supply, the ISL8215M includes a controller, MOSFETs, inductor and passive components inside a single encapsulated package to simplify system design and speed time to market. The module’s proprietary High Density Array (HDA) package reduces lead inductance and dissipates heat primarily through the system board. The device’s components are mounted to a copper lead-frame structure that allows the module to operate at full load over a wide temperature range with no airflow or heatsinks, helping to further reduce size and cost.

The ISL8215M also provides fast transient response and loop stability while its 40ns typical minimum on time allows single-step low duty cycle down conversions to point-of-load voltages. The device offers selectable light load efficiency to extend battery life in Li-ion powered applications, and support Energy Star compliant products.

The device provides voltage, temperature and current protection features that ensure safe operation under abnormal operating conditions.

The ISL8215M also provides automatic restart upon fault clearance to protect the load and system.

Neil Tyler

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