Transcription of AND9093 - Using MOSFETs in Load Switch …
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AND9093 - Using MOSFETs in Load Switch …
Semiconductor Components Industries, LLC, 2014 February, 2014 Rev. 11 Publication Order Number: AND9093 /DAND9093/DUsing MOSFETs in LoadSwitch ApplicationsIntroductionIn today s market, power management is more importantthan ever. Portable systems strive to extend battery life whilemeeting an ever increasing demand for higher switches provide a simple and inexpensive method forthe system to make the appropriate power managementdecisions based on which peripherals or sub-circuits arecurrently in use. load switches are found in notebooks, cellphones, hand held gaming systems and many other load Switch is controlled by the system, and connectsor disconnects a voltage rail to a specific load . By turningunused circuitry off, the system as a whole can run moreefficiently. The load Switch provides a simple means topower a load when it is in demand and allows the system tomaximize Switch BasicsA load Switch is comprised of two main elements: the passtransistor and the on/off control block, as shown in Figure 1.
AND9093/D http://onsemi.com 2 Load Switch Control Circuit Considerations There are multiple ways to implement the on/off control block in a load switch circuit.
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