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Применения > > 2.5W Bipolar Isolated Fly-Buck???? Ultra-Compact Reference Design

2.5W Bipolar Isolated Fly-Buck???? Ultra-Compact Reference Design (PMP15006)

PMP15006 is a miniature (15 mm X 15 mm) Fly-Buck™ reference design using the LM5017. The primary and secondary outputs are set at +/-5V nominal. This ultra-compact design accommodates an input voltage range from 18V to 30V, and a nominal input voltage of 24V. The primary side is set at 5.3V using feedback resistors and the secondary isolated side will supply -5V. The transformer used is a 33 uH, LPD8035V coupled inductor from Coilcraft, with a turns-ratio of 1:1 and a maximum operating current on both the primary and secondary rails set at 250 mA each. The switching frequency is set at 475 kHz.

Возможности

18V to 30Vin, 5V @250 mA (dual) output, 2.5W (one non-isolated primary and one isolated secondary) ~82% peak efficiency Compact and cost effective isolated solution with an off-the-shelf coupled inductor instead of a custom transformer Board size: 15 x 15 mm; max component height: 3.5 mm 3.5 mm max height of coupled inductor helps in height-constraint applications

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2.5W Bipolar Isolated Fly-Buck???? Ultra-Compact Reference Design PMP15006

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