MC34VR500V4ES vs MC34VR500VAES

[Akshayv]

Hi,

In the LS1043A reference design version E, the NXP PMIC used to power enable the LS1043A processor is MC34VR500V4ES.

But, in the revision F of the same refrerence design the NXP PMIC is changed to MC34VR500VAES.

what is the reason of changing the PMIC version to VA from V4..?

Please share the advantage if using VAES over V4ES.

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Thanks & Regards,

Akshay V

[guoweisun]

For the difference of VA and V4 versions please see below  record:

1: V4:SW1_VOLT 1.5V and sequence is 2

VA:SW1_VOLT 1.8V and sequence is 1

2 : V4:SW2_VOLT 1.8V

VA:SW2_VOLT 1.35V

[Akshayv]

HI,

some more clarifications required on the same,

1. what is the difference between MC34VR500V4ESR2 and MC34VR500V4ES..?

2. what was the motive to change the NXP PMIC for LS1043A reference design to change from MC34VR500V4ES to MC34VR500VAES..?

3. what would be the part NXP suggest for Power on sequence LS1043A..?

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Thanks & Regards,

Akshay V

[guoweisun]

1. what is the difference between MC34VR500V4ESR2 and MC34VR500V4ES..?

[gw]No difference except the packages one is  TRAY-Tray, Bakeable, Multiple in Drypack,

the other is REEL-Reel 13" Q2/T3 in Drypack.

questions2 and 3-- what was the motive to change the NXP PMIC for LS1043A reference design to change from MC34VR500V4ES to MC34VR500VAES..?

[gw]Suggest this question answered by LS1043A team,you can submit  ls1043 related questions from below link, because I only support the PMIC side hope you can understand and any questions please let me know ASAP:

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