February 27, 2014 - Intersil announced ISL85410 and ISL85418 synchronous buck regulators that 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. 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.
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, $1.55 and $1.45 each in 1,000-piece quantities. The ISL85410EVAL1Z, ISL85418EVAL1Z and ISL85415EVAL1Z evaluation boards are available for $72 each.
In addition, low-cost ISL85410DEMO1Z, ISL85418DEMO1Z and ISL85415DEMO1Z demo boards can be purchased for $20 each.