Title: Slew Rate and Transient Response Enhancement in MOLDO with Modifying Error Amplifier Structure
Abstract: In this paper, we use bias current boosting and slew rate enhancement in multiple-output Low-dropout structure to achieve a faster transient response. This method reduces ripples of output voltage during sudden changes in load current and input voltage. The proposed MOLDO circuit was simulated with a 0.18[Formula: see text][Formula: see text]m CMOS process in buck mode with four-output legs. Integrating of proposed circuit is easier because there is the symmetry in the circuit designing. The results of our work show that when input voltage changes between 2.5–3.3[Formula: see text]V, the output voltage after 25[Formula: see text][Formula: see text]s with load current of 100[Formula: see text]mA, is determined with ripple less than 1.8[Formula: see text]mV. In sudden changes, the load current at the range 0–100[Formula: see text]mA, and output voltages after a maximum 15.5[Formula: see text][Formula: see text]s with an input voltage of 3.3[Formula: see text]V have the highest ripple in output voltage of 4[Formula: see text]mV.
Publication Year: 2017
Publication Date: 2017-05-16
Language: en
Type: article
Indexed In: ['crossref']
Access and Citation
Cited By Count: 1
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