ADC 6021 Spécifications télécharger pdf (Page 53)

MYXPM6021*

Revision 1.1 - 10/21/14

*Advanced information. Subject to change without notice.

MYXPM6021*

Form #: CSI-D-685 Document 011

MYXPM6021 provides an enablesignal VSYSSX_EN_B, supplied by VSYS, driving the gate of the external FET. The

MYXPM6021alsoprovidesafeedbackinputsignalVSYSSX_FBtocontroltheslewrateandlimittheinrushcurrent.

VSYS_SXexternalP-channelpoweswitchparameters:

Rdson (Vgs=4V) 15-35mohm

Input capacitance, Ciss 750-2315pF

Output capacitance, Coss 265-900pF

Reverse transfer capacitance, Crss 240-800pF

9.6.9 Power Rail VSYS_S

VSYS_SisavoltagerailthatissuppliedbyVSYSthroughaninternalMYXPM6021powerswitchwithaRDSonof900mΩ.

Table 27: VSYS_S Power Switch Specication

Description Value [max, mΩ]

Input, output rails wirebond & internal FET RDS-ON 1,000

VSYS_SpowerswitchisenabledwhenSLP_S3_Bishigh,unlessVSYS_S_CTRL.VSYS_S_SELbitissettohigh.

9.6.10 Buck Boost Regulator V2P85S

TheMYXPM6021integratesabuck/boostconvertersupplying2.85Vintothesystemfortouchscreen,eMMC,sensors

andV2P85SXloads.ThemaximumoutputcurrentofV2P85Sbuck/boostregulatoris550mA.

Figure 20: Buck Boost V2P85S Power Domain Block Diagram

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ADC 6021 Spécifications Page 53