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3A load switches support 1.7-5.5V voltage range

Posted: 13 Mar 2014     Print Version  Bookmark and Share

Keywords:Micrel  load switch  smartphone  tablet  portable applications 

Micrel Inc. has announced its line-up of high-side load switches featuring 14.5mΩ on resistance and can deliver up to 3A of continuous current in a 1 x 1.5mm wafer level chip-scale package. The MIC94161/62/63/64/65 offer true reverse current protection with an input voltage range of 1.7-5.5V.

"This generation of load switches offers small size and low power consumption. Due to their ultra-low on-resistance with high current capability and fault protection features, these devices are ideal for space-constrained or battery operated portable applications," stated Brian Hedayati, VP of marketing for high performance linear and power solutions at Micrel. "With their true reverse blocking circuit, these devices can reduce system design complexity, which provides system isolation and protection while their controlled slew rate helps to prevent any power rail system glitches."

The load switches are geared for low power or space-constrained applications such as smartphones, tablets, mobile computers, set top boxes and solid state drives. The MIC9416x family is available in volume with 1,000 pricing starting at $0.29.

Other features of the devices include an active pull-down circuit (MIC94162/MIC94164) that discharges the output capacitors when the device is turned off, internal soft start function (MIC94161/MIC94164/MIC94165) that reduces in-rush input current and input over voltage protection (MIC94161). These devices are specified to operate from -40°C to 125°C.

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