This macro-cell is an ultra low consumption Power Management Unit (PMU) core designed for Silterra 0.18µm C18G CMOS technology TO (thick oxide) and HP (thin oxide) process.
The circuit has a shunt regulator, internal voltage and bias current generators, built-in power-on-reset and oscillator.
The core is easily retargeted to any other CMOS technology with R-poly devices.