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A shunt-regulation control technique is presented to improve the load transient performance of fully integrated high-frequency converters. The undershoot voltage, which used to be limited by the system loop response and the nanofarad range small on-chip capacitor, is significantly suppressed. The proposed converter is simulated by a standard 0.13 μm CMOS process using a 6 nH inductor and 10 nF capacitor...
A novel current-sensing technique with fast transient and high accuracy for a step-up DC–DC converter is presented. This circuitry is applied for sensing the current flowing through the equivalent series resistor (ESR) of the inductor to obtain the inductor current information. It is achieved with a fast transient response circuit (FTRC), an operational amplifier, a current-sensing stage and an overshoot...
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