Tiny load switch with high current for max mobile features
( 01 Oct 2008 )
The MIC94040/1/2/3 is a family of high side load switches aimed at a wide variety of high-end portable, battery powered consumer devices, including smart/feature phones, personal multimedia and navigation, and Ultra Mobile PCs (UMPCs). Developed by Micrel, the MIC94040/1/2/3 come with MLF package technology that extends battery life by greatly reducing the on-resistance (RDSON) of the devices down to 28mohm. Also, superior thermal performance of the package technology allows more than 3A continuous current from a tiny 1.2 x 1.2mm package, enabling applications such as UMPCs to use the MIC94040/1/2/3 for high current circuits. Each device operates from 1.7V to 5.5V input and can be controlled with very low 1.5V logic due to a level shift circuitry that allows it to control higher voltage supplies. The MIC94040 and MIC94041 feature rapid turn on, while the MIC94042 and MIC94043 provide a slew rate controlled Soft-Start turn-on of 116µs (typical) to prevent in-rush current.
Micrel, Inc., www.micrel.com
Caption
The MIC94040/1/2/3 series targets high-end portable devices requiring high current.
