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Power miniblock for high current POL converters

22.01.2008

International Rectifier has announced the iP1206, a new technical solution for the implementation of step-down synchronous converters used to power telecommunications and network equipment.

The IC is the latest addition to the iPOWIR family of power miniblocks containing all the passive components and semiconductors for realizing the power part of synchronous converters. Based on iPl206, it is possible to implement a single-phase converter with an output current of up to 30 A and a two-phase converter with two independent outputs for currents of 15 A each. Both options are based on anti-phase operation of the channels in order to reduce input voltage and current ripple. To achieve high bulk density, iPl206 uses a full-fledged PWM controller and an optimized power stage based on modern semiconductor devices.

Since the new chip contains all the semiconductor and passive components that are important in terms of conversion quality, only a few additional power passive components are required to create a high-quality converter. At the same time, the requirements for the qualification of the developer and the printed circuit board are significantly reduced.

The features of the iP1206PBF are a constant PWM frequency of 600 kHz in the channels, lossless current limiting, overvoltage and overtemperature protection, offset start mode, and output voltage tracking. The input voltage range is 7,5...14,5 V, the output voltage range is 0,8...5,5 V.

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