SLVA342A Datasheet, PDF (4/8 Pages) Texas Instruments – Simple Power Solution Using LDOs

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Figure 1. PMP4980 Reference Design Schematic
Proper sequencing is ensured in the design with the use of enable pins. As required, Core 1.2 V at 600
mA comes first, followed by Static 1.2 V + VRTC at 251 mA, Static 1.8 V at 230 mA which in turn enable
the LDO and hence at last Static 3.3 V at 115 mA comes up.
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Simple Power Solution Using LDOs
SLVA342A – June 2009 – Revised May 2010
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