Semtech – Buck regulator allows designers to draw their own board inductors (Semtech SC220 buck Regulator)

Feb 9 2012 - Power [More Power Articles]

The first device in its innovative platform of high-frequency switchers has been announced by Semtech.  The SC220 is the industry’s first buck regulator that enables designers to draw their own inductors directly on the PCB. This device offers an ultra-fast, 20MHz switching frequency that, when used with Semtech’s patented X-EMI™ inductor technology, for the first time allows PCB trace inductors to meet or exceed the EMI performance of chip inductors.

Additionally, X-EMI technology eliminates the substantial cost and logistics issues associated with sourcing, qualifying and stocking discrete inductors. Achieving very low EMI with PCB trace inductors makes the SC220 an ideal solution for set top box, HDTV, automotive, industrial, and white goods power management applications.

“Semtech’s groundbreaking X-EMI and SC220 combination slashes bill of material costs and, for the first time, makes drawing inductors in standard, single, dual or multilayer PCB material a reality,” said Athar Zaidi, director of marketing, Power Management Group, Semtech. “For example, in a highly EMI-sensitive automotive power management application, X-EMI technology combined with the SC220 enabled a non-shielded inductor to be used for the first time.”

Conventional PCB trace inductors can be used with high-frequency switchers, but they can exhibit significant EMI issues. X-EMI inductor technology solves these EMI problems and meets, or exceeds the EMI performance of chip inductors. X-EMI technology works by placing 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.

Step-down regulators decrease voltages incoming from the main power source to meet the output voltage needed by the system components. The SC220 steps down input voltages ranging from 2.7V to 5.5V, making it ideal for low-voltage rails. High switching frequency and ultra-fast, hundreds of nanosecond transient response is achieved using Semtech’s ‘unique’ constant-frequency architecture.

The SC220 step-down regulator features an adjustable output voltage down to 1V and an output current of up to 650mA. At very light loads, the device maintains greater than 80% efficiency to help meet global eco regulations. Features include in-rush protection, along with output current limit, short-circuit and thermal-shutdown protection, says the company.

More news from Semtech Print Article Email article

Email Semtech directly for further information about Semtech SC220 buck Regulator

Free Sample. Tick this box if you would like to arrange having a free sample provided (at the discretion of company and subject to availibility)

Name *

Email *

Job Title

Telephone

Company

Company Website

Country

Comment *

Quantity 1-10 11-50 51-100 101-250 251-500 501-1000 1001-2000 2001-5000 5001-10000 10001-50000 Over 50000

Call me back. Tick this box if you would like someone to call you regarding this enquiry. Please remember to enter your telephone number above.

If this is your computer and you would like your contact details to be prepopulated for your next enquiry then tick this box. It requires cookies to be enabled in your browser.