PMIC boosts efficiency in 1.6T optical modules
Jeju is a custom multiphase PMIC from MaxLinear designed for DSP-based 1.6T pluggable optical modules used in AI infrastructure. Compatible with 3-nm and 4-nm CMOS optical PAM DSPs, the device achieves peak power efficiency of up to 95% and saves up to 0.5 W per 1.6T PAM4 DSP compared with conventional PMICs.
Optimized for MaxLinear’s Rushmore 1.6T PAM4 DSP, Jeju also targets 1.6T module designs across the industry. By reducing power consumption and heat dissipation, the PMIC can lower thermal management costs and improve manufacturing yield, according to the company.
Tight DSP rail regulation during load transients minimizes required output capacitance, while 0.5% typical DC output-voltage accuracy, low-noise power delivery, and remote voltage sensing help reduce operating voltage margins and DSP dynamic power consumption. The PMIC comes in a small 54-ball WLCSP package for high-density pluggable optical modules.
Jeju (MxL77904) is expected to begin sampling to customers in February 2027.
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