Patent ID: 7479778

Claim:
An apparatus for adjusting slope compensation in a switching regulator that includes an inductor, the apparatus comprising: a first current source that is arranged to provide a first current (I 1 ) that is associated with the an output voltage (V OUT ) of the switching regulator, wherein the first current source is configured such that the first current (I 1 ) is proportional to V REF ·K, wherein V REF is proportional to the output voltage (V OUT ) of the switching regulator and K is a proportionality constant; a second current source that is arranged to provide a second current (I 2 ) that is related to a measured value (V 1 ) associated with the inductor; and a capacitor circuit that is arranged to receive a charging current to provide a ramp signal, wherein the ramp signal has a slope (m e ) that is related to the first and second currents via the charging current such that the slope is dynamically adjusted in response to changes in the output voltage (V OUT ) of the switching regulator and the measured value (V 1 ) associated with the inductor.