ISL8215M provides high power density and efficiency to simplify design of industrial, medical and communications equipment
Intersil, a subsidiary of Renesas Electronics Corporation, announced the first 42 V single-channel DC/DC step-down power module that delivers up to 15 A of continuous current. The ISL8215M operates from a single wide input voltage range that includes industry standard 12 V, 18 V, and 24 V intermediate bus power rails. The module offers adjustable output voltages from 0.6 V to 12 V, and provides the highest power density of 60 mA/mm2 in a 13 mm × 19 mm 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.
The ISL8215M is a complete DC-to-DC power supply that 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 offers unmatched electrical and thermal performance through a single-layer conductive package substrate that reduces lead inductance and dissipates heat primarily through the system board. The ISL8215M'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, further reducing size and cost.
The ISL8215M also provides fast transient response and excellent loop stability while its 40 ns 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.
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| Efficiency vs load current. |
Key Features and Specifications of ISL8215M
- Complete 15 A single-channel power supply integrates controller, MOSFETs, inductor, and passive components
- Operates from a single 7 V to 42 V wide input voltage range
- Adjustable output voltage from 0.6 V to 12 V with ±1.5% accuracy over line, load and temperature, and 40 ns on-time low duty cycle
- Up to 96.5% peak efficiency
- Adjustable switching frequency from 300 kHz to 2 MHz, with 300 kHz default
- External clock signal synchronization up to 1 MHz
- Selectable light-load PSM/DEM efficiency mode to extend battery life
- Fault protections include input under-voltage lockout, over-temperature, programmable over-current, output over-voltage and output pre-bias startup ensure safe operation
- Programmable soft-start reduces inrush current from the input supply
- Dedicated enable pin and power-good flag simplify sequencing of system power rails with voltage tracking
Pricing and Availability
The ISL8215M power module is available now in a 19 mm × 13 mm × 5.3 mm HDA package and is priced at $13.90 USD in 1k quantities. An ISL8215MEVAL1Z evaluation board can be purchased for $69 USD each.
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| The ISL8215MEVAL1Z evaluation board. |
The ISL8215M joins a comprehensive family of analog and digital power modules that support 1 V to 80 V input voltage rails and 3 A to 80 A output current to satisfy a broad range of applications.
