Patent ID: 9651964
Date: 2017-05-16
CPC Classifications: G05F

Claim:
1. A voltage regulator for generating a regulator output signal, the voltage regulator comprising: a soft-start circuit comprising at least one p-type input transistor, the soft-start circuit configured to receive a variable ramp voltage signal and a soft-start feedback signal and operable to generate a soft start current; an error amplifier comprising at least one n-type input transistor configured to receive a normal-operation feedback signal and operable to generate a control voltage; a transistor having a control terminal coupled to receive the control voltage, a first conduction terminal coupled to receive the soft start current and a second conduction terminal configured to output a drive current for controlling generation of the regulator output signal; and control logic configured to vary the variable ramp voltage signal during a soft-start mode of operation and maintain the variable ramp voltage signal during a normal-operation mode of operation.