A voltage regulator having improved noise immunity includes a reference counter, a digital reference generator coupled to the reference generator, a comparator coupled to the digital reference generator, a load response control circuit coupled to the comparator output, a digital pulse width memory circuit coupled the load response control output, and a digital pulse width timer circuit coupled to the pulse width memory output and to the load response control circuit, wherein the digital pulse width timer circuit and the digital pulse width memory circuit each have greater digital resolution than the digital reference generator.