MIC2090/MIC2091
Current Limiting Power
Distribution Switches General Description Features The MIC2090 and MIC2091 are high-side MOSFET power
switches optimized for general-purpose 50mA or 100mA
low power distribution in circuits requiring over-current
limiting and circuit protection. Typical applications for these
parts are for switching power in USB ports, portable
consumer items, camera and camcorder motor protection,
thermal printer head protection, and many other low
current-load switching applications. The MIC2090 and MIC2091 come in two versions: autoretry current limit and output latch off on an over current
fault. The MIC2090 and MIC2091 are offered in a space
saving 5-pin SOT-23 package with an operating junction
temperature range of -40В°C to +125В°C.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com. 1.8V to 5.5V supply voltage
790 mΩ typical RDSON at 3.3V
MIC2090 is rated for 50mA minimum continuous current
MIC2091 is rated for 100mA minimum continuous
current
Reverse current blocking (OGI)
20ns super fast reaction time to hard short at output
10ms fault flag delay (tD_FAULT/) eliminates false
assertions …