Fly-Buck converters with Coilcraft’s ultra-compact, low profile off-the-shelf coupled inductors in place of custom transformers enable designers to address challenges of board space, low profile, EMI and overall solution cost. Combining the advantages of the flyback and synchronous buck converter topologies to achieve a simple, isolated design with a smaller size and lower BOM cost.

Coilcraft LPD5030V Miniature Coupled Inductor

  • 1:1 flyback transformer with 1500 Vdc (1000 Vrms) winding-to-winding isolation
  • Functional Safety Listed by UL.
  • Only 2.9 mm high and 4.8 mm square
  • Can be used as coupled shielded power inductors in SEPIC applications or as common mode chokes
  • See Selecting inductors for SEPIC
  • Excellent coupling coefficient: K = 0.97 or greater
  • RoHS-compliant, halogen free. 260°C compatible. Matte tin over nickel over silver terminations
  • 0.39, 4.7, 10, 22 and 100 µH parts in 10 series are available in Coupled Inductor Kit C463

Coilcraft LPD8035V Miniature Coupled Inductor

  • Designed in TI’s LM5160 and LM5017 Fly-Buck™ reference designs
    (PMP15005 and PMP15006)
  • Learn more abut TI’s Multi-Output Fly-Buck Regulator from this article on
  • Ultra-small package size 8.0 × 6.4 × 3.5 mm
  • Suitable to operate in ambient temperatures as high as 125°C
  • Tight coupling coefficient: K = 0.98
  • RoHS-compliant, halogen free
  • 1500 Vrms, one minute isolation (hipot) between windings
  • Applications: Flyback transformer, Coupled inductor in SEPIC applications
    and Common mode filter choke

Coilcraft LPHR 8045 Miniature Coupled Inductor

  • Published as TA7848-AE on TI’s LM5160 Dual Output Non-Isolated Fly-Buck™
    reference design (PMP10733)
  • Low leakage inductance and DCR; excellent current handling
  • Based on the Coilcraft LPH miniature inductor series. Contact Coilcraft for other turns ratios.
  • RoHS-compliant. 260°C compatible. Silver-palladium-platinum-glass frit terminations


Coilcraft LPH8045 Miniature Coupled Inductor

  • Three 1 : 1 windings can be wired in a variety of ways:
    As a 1 : 1, 2 : 1 or 1 : 2 transformer;
    as a 1 : 1 transformer with an aux winding;
    as a gate drive transformer;
    as a SEPIC inductor, etc.
  • Low DCR; excellent current handling
  • RoHS-compliant. 260°C compatible. Silver-palladium-platinum-glass frit terminations

Contact LTM Sales to receive your free samples and designer’s kits today!