Buck regulator features first drawn-on inductors
The SC220 is the industry’s first buck regulator that enables designers to draw their own inductors directly on the PCB. The device offers a 20-MHz switching frequency that, when used with the patented X-EMI inductor technology, allows PCB trace inductors to meet or exceed the EMI performance of chip inductors. The X-EMI inductor technology uses two small air-core inductors adjacent to one another in anti-phase position, where the magnetic fields of each inductor partially cancel one another to reduce EMI.
The buck regulator steps down input voltages ranging from 2.7 to 5.5 V. It features an adjustable output voltage down to 1.0 V and an output current up to 650 mA. At light loads the device maintains >80% efficiency. The device suits set top box, HDTV, automotive, industrial, and white goods power management applications. ($0.78 ea/2,500 — available now.)
By Paul O’Shea
Semtech , Camarillo , CA
Sales 805-498-2111
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