International Rectifier Intros Four FlipKY Schottky Diodes

New Products Sep 20, 2005 by Jeff Shepard

International Rectifier Corp. (IR, El Segundo, CA) introduced four new FlipKY™ Schottky diodes that are small and efficient. Offered in space-saving, chip-scale packages (CSP), the new 0.5 A and 1.0 A devices are suitable for hand-held, portable equipment where space is crucial such as cell phones, smart phones, MP3 players, personal digital assistants, and miniature hard disk drives. Applications include current-steering, OR-ing, boost, and free-wheeling circuits.

The 30 V IR0530CSP and 40 V IR05H40CSP are 0.5 A devices housed in a compact, three-bump CSP that occupies 1.1 mm² of board space with a profile of less than 0.6 mm. Compared to industry-standard, SOD-123-packaged Schottky diodes, the new 0.5 A FlipKY devices occupy 80 percent less board space and operate up to 40 percent cooler. The 30 V IR130CSP and 40 V IR1H40CSP are 1 A BGA devices, occupying only 2.3 mm² of board space, or about one-third of the area consumed by a JEDEC DO-216AA package, yet deliver similar electrical and thermal performance.

The FlipKY CSP technology eliminates the lead frame, epoxy, and mold compound traditionally used in other device packages, and provides all electrical connections on one side of the silicon. The design not only minimizes board space and device profile, but also reduces parasitic inductance. In high-frequency switching applications, less parasitic inductance reduces voltage spikes and switching noise, which improves electrical efficiency and reduces EMI. The large bumps of the 0.5 A devices also serve as efficient heat-conduction paths to the PCB, enabling cooler operation than traditional lead-frame devices. In addition, the packaging technology enables the parts to be assembled with standard SMT techniques.

The new FlipKY devices are available now. Pricing for the IR0530CSP and IR05H40CSP is $0.17 each in 10,000-unit quantities. The IR130CSP and IR1H40CSP are $0.25 each in 10,000-unit quantities. Lead-free versions are available. Prices are subject to change.