Developing a TEI-Aware PMIC for Ultra-Low-Power System-on-Chips

As the demand for ultra-low-power (ULP) devices has increased tremendously, system-on-chip (SoC) designs based on ultra-low-voltage (ULV) operation have been receiving great attention. Moreover, research shown remarkable potential that even more power savings can be achieved in ULV SoCs by exploiting temperature effect inversion (TEI) phenomenon, i.e., delay of decreases with increasing temperature. However, TEI-aware low-power (TEI-LP) techniques a critical limitation practical terms, dedicated management-integrated circuits (PMICs) not yet developed. In other words, it is essential to develop PMICs automatically bring out full TEI-LP as chip changes. With aim designing such PMICs, this paper first conducted study find most suitable DC-DC converter and then developed control algorithm maximize effectiveness techniques. Furthermore, we compact hardware controller operate energy efficiently ULP-SoCs.