Abstract: A semiconductor integrated circuit provided with: a transistor M7 with a control terminal supplied with a second voltage GND, a first terminal connected to a third node N3, and second terminal connected to a fourth node N4 for introducing current according to the potential at a second voltage supply node N8, the transistor M7 having a specific value for a threshold value representing the size of voltage supplied to the control terminal to conduct a current of a specific amount between the first terminal and the second terminal; and a transistor M5 with a control terminal connected to fourth node N4, first terminal supplied with a first voltage, and a second terminal connected to a second node N2, the threshold value of transistor M5 being smaller than the specific value.

Abstract: A semiconductor integrated circuit provided with: a transistor M7 with a control terminal supplied with a second voltage GND, a first terminal connected to a third node N3, and second terminal connected to a fourth node N4 for introducing current according to the potential at a second voltage supply node N8, the transistor M7 having a specific value for a threshold value representing the size of voltage supplied to the control terminal to conduct a current of a specific amount between the first terminal and the second terminal; and a transistor M5 with a control terminal connected to fourth node N4, first terminal supplied with a first voltage, and a second terminal connected to a second node N2, the threshold value of transistor M5 being smaller than the specific value.

Abstract: With the objective of reducing current consumption of a regulator circuit per se, switches for performing on/off of an operating current are inserted in series with transistors of a reference voltage generating unit and a differential amplifying unit that constitute the regulator circuit. A switch for turning on/off an electrical connection between the reference voltage generating unit and the differential amplifying unit is provided. These switches are periodically on/off-controlled in accordance with a clock signal. Incidentally, when the timing provided to turn on the switch is made faster than the timings provided to turn on the remaining switches, the operation of the differential amplifying unit can be further stabilized.

Abstract: With the objective of reducing current consumption of a regulator circuit per se, switches for performing on/off of an operating current are inserted in series with transistors of a reference voltage generating unit and a differential amplifying unit that constitute the regulator circuit. A switch for turning on/off an electrical connection between the reference voltage generating unit and the differential amplifying unit is provided. These switches are periodically on/off-controlled in accordance with a clock signal. Incidentally, when the timing provided to turn on the switch is made faster than the timings provided to turn on the remaining switches, the operation of the differential amplifying unit can be further stabilized.

Abstract: A semiconductor device comprises a first current mirror circuit (101) which has an input terminal (101I) and an output terminal (101O), a second current mirror circuit (102) which has an input terminal (102I) and an output terminal (102O) wherein the input terminal (102I) is coupled with the output terminal (101O) wherein the output terminal (102O) is coupled with said input terminal (101I) and a start-up circuit (103) which supplies current to input terminal (102I) based on voltage on the input terminal (101I).

Abstract: A semiconductor device has a start-up circuit which comprises a third node (N3), a first switch (103A) which electrically connects a first node (N1) and an input terminal (102I) of a second mirror circuit (102) based on a voltage level at the third node; a second switch (103B) which electrically connects the first node and the third node based on a voltage level at an input terminal (101I) of a first current mirror circuit (101); and a third switch (103C) which electrically connects the first node and the third node based on an inverted voltage level at the third node.

Abstract: A semiconductor device comprises a first current mirror circuit (101) which has an input terminal (101I) and an output terminal (101O), a second current mirror circuit (102) which has an input terminal (102I) and an output terminal (102O) wherein the input terminal (102I) is coupled with the output terminal (101O) wherein the output terminal (102O) is coupled with said input terminal (101I) and a start-up circuit (103) which supplies current to input terminal (102I) based on voltage on the input terminal (101I).

Abstract: A semiconductor device has a start-up circuit which comprises a third node (N3), a first switch (103A) which electrically connects a first node (N1) and an input terminal (102I) of a second mirror circuit (102) based on a voltage level at the third node; a second switch (103B) which electrically connects the first node and the third node based on a voltage level at an input terminal (101I) of a first current mirror circuit (101); and a third switch (103C) which electrically connects the first node and the third node based on an inverted voltage level at the third node.

Abstract: A semiconductor device comprises a first current mirror circuit (101) which has an input terminal (101I) and an output terminal (101O), a second current mirror circuit (102) which has an input terminal (102I) and an output terminal (102O) wherein the input terminal (102I) is coupled with the output terminal (101O) wherein the output terminal (102O) is coupled with said input terminal (101I) and a start-up circuit (103) which supplies current to input terminal (102I) based on voltage on the input terminal (101I).