![]() The model is simple enough to run on the evaluation version of PSPICE that can be downloaded.įigure 1 shows the AC model for a step-down converter with a constant DC input voltage. The evaluation kit application circuit which is used for modeling is available for download. Presented here is an additional design tool, a simple PSPICE model that can generate open-loop-gain Bode plots and predict load transient response for MAX8546 designs. ![]() A detailed design procedure for the MAX8546 is presented in the MAX8546 data sheet. ![]() Low-cost, lossless overcurrent protection is achieved by utilizing the low-side MOSFET R ds(on). Its 300kHz switching frequency is well suited for use with low-cost external components such as powdered iron inductors and aluminum electrolytic capacitors, and still provides the necessary control bandwidth for good transient response. The MAX8546 is a low-cost, wide-input-voltage range, step-down controller with foldback current limit. A simple PSPICE model that can generate open-loop-gain Bode plots and predict load transient response for MAX8546 designs is presented. The MAX8546 is a low-cost, wide-input-voltage range, step-down controller with foldback current limit.
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