Maxim MAX15053 – 2A synchronous buck integrates MOSFETs for up to 96% efficiency in a 1.6mm by 1.6mm package

Maxim introduced the MAX15053, a current-mode, synchronous DC-DC converter in a tiny 1.65mm x 1.65mm wafer-level package (WLP). This miniature step-down regulator integrates MOSFETs to simplify design, minimize EMI, and save board space while achieving conversion efficiency up to 96% at full load (2A). The MAX15053 operates from a fixed 1MHz switching frequency that allows for small external passive components and an all-ceramic-capacitor design, further minimizing total solution size. A peak-current-mode architecture ensures excellent load regulation while simplifying compensation. Offering both fixed-PWM and skip-mode operation, the MAX15053 is suitable for applications ranging from telecom, networking, and base-station equipment to portable devices such as notebooks.