| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide the boosting circuit of low power consumption for improving element reliability without causing overshoot to set, target potential when a supply voltage abruptly increases when the current load of a pump circuit varies abruptly. SOLUTION: The boosting circuit comprises a boosting clock generation means for generating a boosting clock, the pump circuits 71-7n+1 that are connected in parallel for boosting a supply voltage Vcc by the input of the boosting clock and generating an output voltage VPP, a limiter means 8 for controlling so that the output voltage VPP does not exceed a specific voltage, a current detection means 10 for detecting current flowing through the limiter means 8 and outputting enable signals EN1-ENn to switches 91-9n, and the switches 91-9n for supplying the boosting clock to the pump circuits 7n+1-72.</p> |
