An apparatus (200, 300, 400) for charge recycling, in a low power logic circuit, between a first power-domain (204, 306, 406), comprising a higher and a lower voltage side and configured to operate at a first voltage (VDDtop), and a second power-domain (208, 310, 412), also comprising a higher and a lower voltage side and configured to operate at a second voltage (VDDbottom), comprising: a first power-delivery circuit (202, 302, 404), comprising an input, a top-node voltage output and a mid-node voltage output, and configured to receive a maximum operational voltage (Vbattery, VDDbattery) from a DC power source (304, 402) and to supply the first voltage (VDDtop) to the high voltage side of the first power-domain (204, 306, 406) through the top-node voltage output; a second power-delivery circuit (206, 308, 410) coupled between the first power-domain (204, 306, 406) and the second power-domain (208, 310, 412) to isolate the first and second power-domains from each other and coupled to receive power from a mid-node, to which the mid-node voltage output of the first power-delivery circuit (202, 302, 404) and the lower voltage side of first power-domain (204, 306, 406) are also connected, wherein the second power-delivery circuit (206, 308, 410) is configured to receive a mid-node voltage (Vmid) from the mid-node and to supply the second voltage (VDDbottom) to the higher voltage side of the second power-domain (208, 310, 412), and wherein the second power-delivery circuit (206, 308, 410) includes a boost converter, based on a switch mode power supply, which controls the mid-node voltage (Vmid) so that the first voltage (VDDtop) plus the second voltage (VDDbottom) is greater than the maximum operational voltage (Vbattery, VDDbattery) of the first power-delivery circuit (202, 302, 404), and wherein the second voltage (VDDbottom) and the operational voltage (Vbattery, VDDbattery) of the first power-delivery circuit (202, 302, 404) are referenced to a ground potential, and the first voltage (VDDtop) is referenced to the mid-node voltage (Vmid). a first power-delivery circuit (202, 302, 404), comprising an input, a top-node voltage output and a mid-node voltage output, and configured to receive a maximum operational voltage (Vbattery, VDDbattery) from a DC power source (304, 402) and to supply the first voltage (VDDtop) to the high voltage side of the first power-domain (204, 306, 406) through the top-node voltage output; a second power-delivery circuit (206, 308, 410) coupled between the first power-domain (204, 306, 406) and the second power-domain (208, 310, 412) to isolate the first and second power-domains from each other and coupled to receive power from a mid-node, to which the mid-node voltage output of the first power-delivery circuit (202, 302, 404) and the lower voltage side of first power-domain (204, 306, 406) are also connected, wherein the second power-delivery circuit (206, 308, 410) is configured to receive a mid-node voltage (Vmid) from the mid-node and to supply the second voltage (VDDbottom) to the higher voltage side of the second power-domain (208, 310, 412), and wherein the second power-delivery circuit (206, 308, 410) includes a boost converter, based on a switch mode power supply, which controls the mid-node voltage (Vmid) so that the first voltage (VDDtop) plus the second voltage (VDDbottom) is greater than the maximum operational voltage (Vbattery, VDDbattery) of the first power-delivery circuit (202, 302, 404), and wherein the second voltage (VDDbottom) and the operational voltage (Vbattery, VDDbattery) of the first power-delivery circuit (202, 302, 404) are referenced to a ground potential, and the first voltage (VDDtop) is referenced to the mid-node voltage (Vmid).