VSET/RESET and VPGM generator without boosting dead time for 3D-ReRAM and NAND flash hybrid solid-state drives

A single-inductor, dual-output, parallel-boosting (SIDOPB) boost converter which simultaneously outputs 3V for ReRAM program V_SET/RESET, 20V for NAND flash program V_PGM, is proposed for a hybrid ReRAM and NAND flash 3D-integrated solid-state drive (SSD). Simultaneous boosting of two programming voltages is experimentally demonstrated without boosting dead time for the first time. Interference between ReRAM and NAND boosters is suppressed by the inductor design. There is no additional power increase or the performance degradation compared with the conventional boost converter using double-coil SSD. The area is reduced by 15%.