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Intersil's New Single Phase Wide Input Step-Down PWM Controller Provides Optimal Transient Performance And Current Sharing Capability

MILPITAS, Calif., Oct. 28, 2013 (GLOBE NEWSWIRE) -- Intersil Corporation (Nasdaq:ISIL), a leading provider of innovative power management and precision analog solutions, introduced the latest addition to its popular family of step-down PWM controllers, the new ISL8115 single phase synchronous controller. Featuring a Vin range from 2.97V to 36V, the new ISL8115 PWM controller offers ultra wide voltage ranges and current sharing capability, making it ideal for a variety of Point of Load (POL) DC/DC applications in industrial and infrastructure markets.

Intersil's New Single Phase Wide Input Step-Down PWM Controller Provides Optimal Transient Performance and Current Sharing Capability

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The ISL8115 PWM controller enables system designers to maximize performance and reduce cost by providing a single controller for a variety of input voltages. This makes the device ideal for telecom, data communications systems, industrial power supplies, and battery powered products that require the widest possible voltage ranges to maximize performance and minimize system costs. The ISL8115's very wide Vin range of 2.97V to 36V allows it to support up to 5.5V output voltage using direct current resistance (DCR) sensing, maximizing efficiency in high current applications.

The device's current sharing capability allows multiple modules to be connected in parallel via iShare bus to achieve higher output current and to reduce input and output ripple current, resulting in fewer components and reduced output dissipation. Current sharing coupled with phase delay enables the ISL8115 controller to achieve high current with up to six ISL8115-based POL modules in parallel operation. Configurable diode emulation mode improves efficiency under light load conditions. In addition, by using voltage-mode PWM leading-edge modulation with non-linear control and input voltage feed-forward compensation, the ISL8115 maintains a constant loop gain for optimal fast transient response.

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