LTM4680 +3.3V and +0.85V Generation reg.

Question

HI! 
 Is it possible to generate +0.85V(25A) and +3.3V(13A) dual outputs from +12V net using LTM4680? 
 As i am feeding +0.85V for ASIC, i need ripple to be less than 20mV, What should be the Switching frequency for 12V -> +3.3V/+0.85V configuration? 
 
 Thanks in advance, 
 Deva

FormerMember · Accepted Answer

Yes, it is possible. 
 
 For the output ripple requirement, it is dependent on your switching frequency and output capacitor. Solve using the usual buck converter equations. 
 
 Regards, 
 Jhun)

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LTM4680 +3.3V and +0.85V Generation reg.