通过使用误差放大器调节输出电压和使用峰值电流控制器来限制其电流水平，可以同时控制建议的带有平稳峰值电流控制（SPCC）电路的低压差（LDO）调节器。可以切换SPCC电路 通过检测负载电流和压差电压的信息，在这两个控制机制之间平稳地进行。 测量结果表明，在负载电流超过峰值电流水平时，过电流保护可以使通过器件作为电流源工作。 而且，当负载电流小于限制电流时，控制机构可以返回到误差放大器控制，从而确保输出电压接近额定值。 在此LDO稳压器上施加160 mA负载电流阶跃或2 V电源电压阶跃时，输出电压稳定且变化小于15 mV。索引术语— CMOS模拟IC，低压降（LDO）稳压器，MOSFET IC，过流保护（ OCP）。

The proposed low-dropout (LDO) regulator with asmooth peak current control (SPCC) circuit can be simultaneouslycontrolled by using an error amplifier to regulate output voltageand a peak current controller as a means to limit its current level.The SPCC circuit can be switched smoothly between these twocontrol mechanisms by detecting the information of load currentand the dropout voltage. Measured results show that overcurrentprotection can make the pass device operate as a current sourcewhile the load current exceed the peak current level. Moreover, thecontrol mechanism can return to error amplifier control when loadcurrent becomes smaller than the limiting current, thus ensuringoutput voltage to be close to the rated value. Output voltage isstable and varies smaller than 15 mV when a 160 mA load currentstep or a 2 V supply voltage step is placed on this LDO regulator.Index Terms—CMOS analog ICs, low-dropout (LDO) regulator,MOSFET ICs, overcurrent protection (OCP).