| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an error amplification circuit that enables an external phase compensation capacitance without requiring a larger circuit scale and higher circuit power consumption than an error amplification circuit with a built-in phase compensation circuit, and a switching regulator using the error amplification circuit. <P>SOLUTION: In an error amplification circuit 10a having an integrated circuit 10 including an error amplifier 12 for amplifying and outputting an error between a predetermined reference voltage Vref1 and an input voltage Vfb1 and a current generation circuit 11 for supplying a bias current Ibias1 to the error amplifier 12, the integrated circuit 10 includes a bias current control terminal T1 connected to the current generation circuit 11, and a phase compensation terminal T2 connected to an output terminal T11 of the error amplifier 12 via a phase compensation resistance 14. The error amplification circuit 10a includes a phase compensation capacitance 30 connected to the phase compensation terminal T2 externally to the integrated circuit 10. <P>COPYRIGHT: (C)2012,JPO&INPIT |
