Charge pump circuit, comprising: a first stage and at least a second stage, each having a capacitor (130, 230) and a current source (100, 200), wherein the charge pump circuit is configured such that, in a first phase of operation, the capacitor of the first stage is switched in series to the current source of the first stage for charging the capacitor of the first stage and the capacitor of the second stage is switched in series to the current source of the second stage for charging the capacitor of the second stage and that, in a second phase of operation, the capacitor of the first stage and the capacitor of the second stage are switched in series for providing a supply voltage at an output of the charge pump circuit, wherein the first and the at least a second stage (31, 32) each comprises - a first switch (120, 220) arranged between the current source (100, 200) of the stage (31, 32) and a first electrode of the capacitor (130, 230) of the respective stage (31, 32) and set in a closed state in the first phase and in an open state in the second phase, - a second switch (240, 340) arranged between the first electrode of the capacitor (130, 230) of the respective stage (31, 32) and an output (34, 39) of the respective stage (31, 32) and set in an open state in the first phase and in a closed state in the second phase, and - a source switch (110, 210) that couples a node between the current source (100, 200) and the first switch (120, 220) to a reference potential terminal and is set in an open state in the first phase and in a closed state in the second phase. a first stage and at least a second stage, each having a capacitor (130, 230) and a current source (100, 200), wherein the charge pump circuit is configured such that, in a first phase of operation, the capacitor of the first stage is switched in series to the current source of the first stage for charging the capacitor of the first stage and the capacitor of the second stage is switched in series to the current source of the second stage for charging the capacitor of the second stage and that, in a second phase of operation, the capacitor of the first stage and the capacitor of the second stage are switched in series for providing a supply voltage at an output of the charge pump circuit, wherein the first and the at least a second stage (31, 32) each comprises - a first switch (120, 220) arranged between the current source (100, 200) of the stage (31, 32) and a first electrode of the capacitor (130, 230) of the respective stage (31, 32) and set in a closed state in the first phase and in an open state in the second phase, - a second switch (240, 340) arranged between the first electrode of the capacitor (130, 230) of the respective stage (31, 32) and an output (34, 39) of the respective stage (31, 32) and set in an open state in the first phase and in a closed state in the second phase, and - a source switch (110, 210) that couples a node between the current source (100, 200) and the first switch (120, 220) to a reference potential terminal and is set in an open state in the first phase and in a closed state in the second phase. - a first switch (120, 220) arranged between the current source (100, 200) of the stage (31, 32) and a first electrode of the capacitor (130, 230) of the respective stage (31, 32) and set in a closed state in the first phase and in an open state in the second phase, - a second switch (240, 340) arranged between the first electrode of the capacitor (130, 230) of the respective stage (31, 32) and an output (34, 39) of the respective stage (31, 32) and set in an open state in the first phase and in a closed state in the second phase, and - a source switch (110, 210) that couples a node between the current source (100, 200) and the first switch (120, 220) to a reference potential terminal and is set in an open state in the first phase and in a closed state in the second phase.