Multi uPower Module design (LTM4678, LTM4675)

Question

Hello, 
 
 My customer are considering to use Multi uPower Modules. 
 And they need Power sequencing about Multi uPower Modules. 
 
 Q1) Would you review their schematic design in attached file? 
 They will use 3 LTM4675s & 3 LTM4678s. 
 1). One LTM4678 is single output. (1V, 50A) 
 2) Two LTM4678s are dual output. (3.3V,1.0V 50A / 1.5V,1.0V,50A) 
 3) All LTM4675s are dual output. ( 1.5V,2.5V/9A/1.5V,1.0V,9A/3.3V,1.5V,9A) 
 PDF 
 
 Please check attached files and let me know your review opinions. 
 
 Regards, 
 Se-woong

yanliang · Accepted Answer

The schematic looks good. There are several pin strapping resistor values should be changed to get the desired output voltage at starting up. 
 R300 at U16 Vtrim0_CFG pin should be open, not 0Ohm. 
 R342 at U17 Vtrim0_CFG pin should be open, not 0Ohm. 
 R563 at U24 Vtrim0_CFG pin should be 0ohm, not open.

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Multi uPower Module design (LTM4678, LTM4675)

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