Instruction Manual
MAX15303 PMBus Command Set User’s Guide 
Page 51 of 52 
ZETA_P 
Data Bytes: 
2 
Units: 
Scalar 
Transfer: 
Read/Write Byte 
Factory Value: 
0xBB00 (1.5) 
Description/Notes: 
The ZETA_P command sets the damping ratio for the closed-loop response. The value can be changed 
to improve performance when using non-
ceramic output capacitors with higher equivalent series 
resistance. 
Wait at  least 500μs  for execution after  sending the  ZETA_P command  before sending  additional 
PMBus commands. 
Trademarks 
InTune is a trademark of Maxim Integrated Products, Inc. 
PMBus is a trademark of SMIF, Inc. 










