Miniature load switch helps designers to manage power on consumer devices

Semtech has unveiled the SC724/5/8/9 Series of 2A load switches in a tiny 0.76mm x 0.76mm, 4-bump chip scale package (CSP) with industry leading on-resistance (Ron) of just 36mohm. The SC724/5/8/9 switches offer a 2A, 1.1V to 3.6V power rail with controlled turn-on and turn-off profiles. The SC724 and SC728 provide fast turn-on (19.5µs at 1.8Vin) and float the output when disabled, while the SC725 and SC729 provide slower turn-on (490µs at 1.8Vin) and discharge the output when disabled. The load switches are ESD hardened to greater than 3kV for robust circuit protection, says the company. "The SC72X load switch family enables tiny circuit footprints and increases performance for high 2A current, low 36mohm Ron, and extensive protection," said Andy Khayat, Senior Director for Consumer Power in Semtech's Power Management Products Group. “Semtech's customers can now achieve super small designs with extended battery life and high reliability." Portable applications include wearable electronics, video cameras, smart phones and tablet computers. Non-portable applications include HDTVs, set-top boxes and networking devices.