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Buck Regulators address multiple voltage rail requirements.

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March 7, 2014 - Integrating both high-side and low-side field-effect transistors, ModelsISL85410 and ISL85418 eliminate need for low-side diode and external compensation. Synchronous buck regulatorsdown-convert DC voltage from power supply or battery to power multiple microprocessors and board components at various voltage requirements, minimizing power loss. Housed in 4 x 3 mm package, devices support input voltage range of 3–36 V and wide Vout range from 0.6–95% of Vin.

Intersil Announces Highly Integrated, Efficient and Flexible Synchronous Buck Regulators


Intersil Corporation
1001 Murphy Ranch Rd.
Milpitas, CA, 95035
USA



Press release date: February 26, 2014

The new ISL85410/18 buck regulators support a wide range of input and output voltages to address multiple voltage rail requirements within complex systems

Milpitas, CA – Intersil Corporation (NASDAQ: ISIL), a leading provider of innovative power management and precision analog solutions, today announced the ISL85410 and ISL85418 synchronous buck regulators that are ideal for complex industrial and medical systems. The new buck regulators efficiently down-convert the DC voltage from a power supply or battery to power multiple microprocessors and board components, at various voltage requirements, helping to minimize power loss. The ISL85410/18 offer designers maximum flexibility, operating over a wide range of input and output voltages, and because the devices are pin-to-pin compatible, a single layout can be leveraged across multiple systems, accelerating time to market and reducing design cost.

The ISL85410/18 synchronous buck regulators are highly integrated resulting in better efficiency while reducing the number of required external components and enabling a compact footprint. The ISL85410/18 synchronous buck regulators integrate both the high-side and low-side field-effect transistors (FETs), eliminating the need for an inefficient low-side diode. By also eliminating the need for external compensation, the overall bill of materials (BOM) is reduced to only five external components. The minimal component count of the ISL85410/18 reduces the solution footprint size and overall space requirements for a power design, which is important for space constrained applications.

Intersil’s ISL85415 synchronous buck regulator is also pin-to-pin compatible with the ISL85410/18, and together provide system designers with a versatile down-converting solution that can be used to support a wide input voltage range from 3V to 36V with 500mA to 1A options. Designers can easily reuse a single proven, reliable layout for different power levels allowing for enhanced flexibility, reduced design time and accelerated time to market.

“From industrial process control to medical imaging, industrial designers are being asked to reduce design time and improve efficiency while ensuring the delivery of robust and reliable solutions,” said Colm Brazil, senior marketing manager for Intersil’s Industrial Power group. “To address the increasing complexity of industrial system designs and the proliferation of voltage rails, the ISL8541X family of synchronous buck regulators delivers an integrated, reliable and easy-to-use solution that brings flexibility, a reduced component count and improved efficiency to power designs.”

Features and Specifications
Integrated low side FET
Integrated compensation
Supports input voltage range of 3V to 36V
Wide Vout range from 0.6V to 95% of Vin
Compact 4mm x 3mm package
Easy to design with using Intersil's iSim and online design/layout files

Pricing and Availability
The ISL85410, ISL85418 and ISL85415 synchronous buck regulators are available now, priced respectively at $1.75 (USD), $1.55 (USD) and $1.45 (USD) each in 1,000-piece quantities. The ISL85410EVAL1Z, ISL85418EVAL1Z and ISL85415EVAL1Z evaluation boards are available for $72 (USD) each. In addition, low-cost ISL85410DEMO1Z, ISL85418DEMO1Z and ISL85415DEMO1Z demo boards can be purchased for $20 (USD) each.

For more information on the ISL8541X family of synchronous buck regulators and iSim web-based design tool, please visit: http://go.intersil.com/ISL8541x-buck-regulator and http://www.intersil.com/en/tools/isim.html.

For more information on the ISL85410EVAL1Z, ISL85418EVAL1Z and ISL85415EVAL1Z evaluation boards, please visit: http://www.intersil.com/en/tools/reference-designs/isl85410-8eval1z.html.

For more information on the ISL85410DEMO1Z, ISL85418DEMO1Z and ISL85415DEMO1Z demo boards, please visit: http://www.intersil.com/en/tools/reference-designs/isl85410-8demo1z.html.

About Intersil
Intersil Corporation is a leading provider of innovative power management and precision analog solutions. The company's products address some of the largest markets within the industrial and infrastructure, mobile computing and high-end consumer markets. For more information about Intersil visit our website at www.intersil.com.

Intersil and the Intersil logo are trademarks or registered trademarks of Intersil Corporation. All other brands, product names and marks are or may be trademarks or registered trademarks used to identify products or services of their respective owners.
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