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LT3063 Application Voltage Adjustment Resistors

Category: Hardware
Product Number: LT3063

Hello everyone,

I have to design a PCB with LT3063 as Supply Voltage
Uin=30V Uout=10V, Iout=50mA= 2mA

As I saw in evaluationboard for LT3063 , there are different values resistor values for voltage adjusment , than in datasheet.
This is the link to evalutions boards  reference design: 
https://www.analog.com/media/en/technical-documentation/eval-board-schematic/DC2177A-1-SCH.PDF

The values of  resistors R1 and R2 for voltage adjustment in evaluation board are 2 times lower than given  in datasheet of LT3063.

 Evaluation board R1/R2 Combinations for output voltage adjusment

 Datasheet's R1/R2 combinations  for output voltage adjustment

My Question is:

Is it better to use the lower resistors because of  lower voltage noise ?
Than I would use R1=60.4k and R2=946k (evaluation board than R1=124k R2=1960K (datasheet) for 10V ouput.

This is my design schematic with the R and C values taken from evaluation board. 

Thank you in advance for helping me.

Wolf



wrong output current Iout=2mA
[edited by: motor at 5:17 AM (GMT -4) on 21 Jun 2023]
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