LPC55S69JEV59: Is internal DCDC useable?

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LPC55S69JEV59: Is internal DCDC useable?

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KostasH
Contributor I

Can someone confirm if LPC55S69 in the 59-VFBA package (LPC55S69JEV59) supports the use of its internal DC-DC that is firmware controllable? 

Since pin FB is unbonded in the package — is FB is internally tied to VDD_PMU on the die or package substrate, to allow internal DC-DC converterLPC55S69JEV59 to be is fully operational in VFBGA59, using the external filtering components as described in the part's datasheet?

Thanks all in advance! 

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Alice_Yang
NXP TechSupport
NXP TechSupport

Hello @KostasH 

 

Thanks for your question.

  1. Yes, LPC55S69JEV59 supports an internal DC‑DC converter.

  2. Yes, the FB node is internally connected to VDD_PMU.

 

BR

Alice

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