Intersil Introduces Point-Of-Load Power Regulator

Intersil has introduced a compact, scalable power module, which provides designers with a general-purpose power solution that satisfies a range of point-of-load (POL) power requirements. The ISL8200M is a 10A, integrated POL regulator in a surface-mount QFN package, which includes a pulse-width-modulation (PWM) controller, power Mosfets, a power inductor and associated discrete components. It is suitable for a range of applications in the computing, telecommunications and networking infrastructure, as well as in industrial markets.

The ISL8200M's highly integrated construction makes it simple to design a high-performance POL regulator, according to the company. Constructing a high-performance POL regulator with the ISL8200M is fast; all the user needs is input and output capacitors, a few support components and a single resistor to program the output voltage. The ISL8200M minimises the risk of product delays; the user just drops it on the board and it works.

Its compact 15 x 15mm package does not consume much area on the printed circuit board (PCB). With its thin 2.2mm profile, the ISL8200M can be mounted on the back side of the PCB, where space is typically free. Today, designers must use different power solutions depending on the output current demands. The ISL8200M enables a single solution covering less than 10-60A. This simplifies inventory by allowing a single part to satisfy a range of POL regulator applications.

The ISL8200M accepts input voltages from 3V to 20V and supports output voltages from 0.6V to 6V. A patented current-sharing architecture allows up to six modules to be paralleled for a total output current of 60A. Remote voltage sensing also assures precise regulation, even in low-voltage, high-current applications. Intersil claims that a programmable and synchronisable switching frequency allows designers to optimise efficiency and control switching noise in noise-sensitive systems.

An enable pin and a power-good indicator can be used to sequence modules to meet FPGA and processor power sequencing requirements. The ISL8200M is assembled in a thermally enhanced surface-mount QFN package with leads around the perimeter. This provides for reliable soldering, solder quality inspection and easy access with oscilloscope probes. The ISL8200MIRZ is available now in a 23-lead QFN package, with prices starting at USD15.86 (GBP9.82) each in 1,000-piece quantities.

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