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Adjustable minimum peak inductor current level for burst mode in current-mode DC-DC regulators
Adjustable minimum peak inductor current level for burst mode in current-mode DC-DC regulators
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机译:电流模式DC-DC稳压器中突发模式的可调最小峰值电感器电流水平
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摘要
Switching regulator circuits and methods are provided for regulating output voltage that include an adjustable minimum peak inductor current level for Burst Mode in current-mode DC-DC regulators. Minimum peak inductor current level control is achieved during Burst Mode by allowing external control for adjusting the burst threshold level. A single pin can be used to distinguish between forced continuous and Burst Mode as well as set the burst threshold level during Burst Mode, or an alternate method of setting a variable burst threshold level can be implemented in which two pins are used, one for selecting the mode of operation and the other for setting the burst threshold level during Burst Mode. The above principles can be applied to both step-up and step-down regulator circuit configurations, as well as both synchronous switching regulators and non-synchronous switching regulators.
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