Power

Load switch features 32mΩ on-state resistance

17th March 2015
Barney Scott
0

Semtech has announced the SC33020H Load Switch platform in a 0.9mm2, four-bump Chip Scale Package (CSP) with R(ON) of 32mΩ. The SC33020H load switch provides power rail control for up to 2A with reverse current blocking protection for both portable and non-portable devices, including wearables, action video cameras, smart phones, tablets, HDTVs and STBs.

The switch accepts 1.6-5.5V supply input rail and whenever the output voltage goes higher than the input rail the switch blocks current from flowing in reverse direction to protect sensitive upstream circuitry or to prevent excessive power leakage loss in application standby states. The reverse blocking feature is present at all times regardless of the switch ON/OFF state. The load switch is ESD-hardened to greater than 4kV for robust circuit protection.

“The SC33020H reverse blocking load switch gives designers effective power rail control and protection and enhances system performance due to the 32mΩ R(ON),” said Andy Khayat, Senior Director, Consumer Power, Power Management Group, Semtech. “Circuit designers can now achieve robust designs with extended battery life.”

Semtech will highlight its load switch at APEC, 15th to 18th March, in booth 110. The SC33020H is available in production quantities and is priced at $0.38 each in 5,000-piece reels. The ordering code is SC33020HCSTRT, and evaluation boards are available.

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