Power distribution

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sankey-beta

5v,3v3,2000
5v,1v8,2000
3v3,2v5,300
3v3,2v8,300
3v3,CH569 IO,70
1v2,lpddr3 IO,200
1v2,T120 Core & MIPI/PLL analog,300
1v2,CH569 Core,80
1v8,ICM-42688,0.88
1v8,LPDDR3 Core,30
1v8,T120 IO,150
1v8,1v2,600
2v5,T120 MIPI analog,50
2v8,Camera,110

this follows the buck ⇒ LDO pattern for nicer voltage

Power sequence of chips

chip power sequence
CH32x035 3v3/5v0 ⇒ 1v2 ⇒ 1v3