C1
2.2µF
VBAT
3V3_USB
C2
2.2µF
LX
1.35V Switch-
mode Regulator
SENSE
To 1.8V Switch-mode
Regulator Input
LX_1V35
SMPS_1V35_SENSE
VSS_SMPS_1V35
L1
4.7µH
1.35V Supply Rail
C3
4.7µF
Figure 10.4: 1.35V Switch-mode Regulator Output Configuration
TMflEAeFr1Fo1FTaWoielf0flihoholntswfgi0scheni.terersochu5ooeri.ustamie.rsm■■■■■■■■■fhnea3amuoerpweneifnimlpstpfnil1hcienodeptrlate0ciyeecewiclTTTTVTVTTmdyhn..ttsgga5hi1shhhhhhhCRe1dinouirrnte.seeeeeeeciiaegstlHE3lopgi.heaodthds5Ctttrirn8GpGeeentrrrufeeoe)toVsraaalgdSnhdEepggVerw1frpcccrPaeoiutR.luusqN1eo.hikkktsi8brncrnwollu.us8caAaae8at0lgbbbtteoen6oihhtttmrpBt0Veeeoonclde3rncaerlatVLttt,rreeehchos5wwwtsprELdfecqyoi-iemewoaanseeemlQ1ttuuainnlitdppeee1ipslv,atittnF1oodruhipcnnn.eoEennfeae3wdNtehoun.x1cSdLtt5epV-i3atrbhhete.nsfjmXVaRe3uiLeeeBrnqpgrs5rreo_5s.mXottaiAesn:iwbis1ngfntVndV_wsacawT,aVugtgede1iihblisattfllabe8tuiVtaiaeLelcwcrcneSernocnetC3heaadro1itctdbgtyr5-Contkwcr.aawmiftyu8ordeihha31ipcl,sl0itnsovae-ntVi,aketLhmVteshedntdCsc3r1ceoteenoroii_tsc2,xrbtVneih.ta.dUnuiirt,azefrnBerenSeegpcC-nShtedrAgwcrupemdnoqarB3ueeuTeilceaunutycntlatg.eaohliotoicorroo-nuntvnefeaeofnrdldoefadai.trtssltlhxh:1,toVteeewloaeceol3nSterPgiew.tsfrstaS3hRerSlreep-ova.i_rgnKh2soemeceSpu.oiEikspg1onMulug4aiYahisbtnrrn.tP.re_etcu0oecctaarPSeqo0rtoolnlwlcuS_nMimeatncnuoe1inUlreHpt.rteVeetcmrh_ouosznsec3neEteatn,rpu5aLeNr-i1tsVos.niXdsetA.FiwtBo3:n_asCBrCte5A1giianSidLrVVnTlPoaERadh3rSsayeSui5msugr,nKsceiphaidnSEtscop-bngteeYo3rladlypfimeV_nLfnittSr3cc1hm1eaeei_Me.mei(e8lU4.ndoPin0bnS.cfdS7VedyB<sµ_rus1,pHFcc2u.goRot0)7por,wmΩoE,prfeoul2QbLy(rln0<il1_norcd10,aOiwon3.ttin5olFeeg,vΩrFdsmmtehSebraieeEsnyxiaTooFiamlu,nisglwti,ospauthweunrhietdcesh
ESR shunt capacitor, C3 (2.2µF), is required between the LX_1V8 terminal and the 1.80V supply rail. Connect the
1.80V supply rail and the VDD_AUX_1V8 pin and ground the SMPS_1V35_SENSE pin.
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