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MIC20XX Family Fixed and Adjustable Current Limiting Power Distribution Switches General Description Features MIC20XX family of switches are current limiting, high-side • MIC20X3 – MIC20X9 power switches, designed for general purpose power 70mΩ typical on-resistance @ 5V distribution and control in digital televisions (DTV), printers, • MIC2005A/20X9A set top boxes (STB), PCs, PDAs, and other peripheral devices (see Functionality Table and Pin Configuration 170mΩ typical on-resistance @ 5V drawings) • Enable active high or active low MIC20XX family’s primary functions are current limiting • 2.5V – 5.5V operating range and power switching. They are thermally protected and will • Pre-set current limit values of 0.5A, 0.8A, and 1.2A* shutdown should their internal temperature reach unsafe • Adjustable current limit 0.2A to 2.0A* (MIC20X7- levels, protecting both the device and the load, under high- MIC20X9) current or fault conditions • Adjustable current limit 0.1A to 0.9A* (MIC20X9A) Features include fault reporting, fault blanking to eliminate • Undervoltage lock-out (UVLO) noise-induced false alarms, output slew rate limiting, under voltage detection, automatic-on output,