The EV4458DQT-00A is an evaluation board for the MP4458, a high frequency step-down switching regulator with an integrated internal high-side high voltage power MOSFET. The IC provides 1A output with current mode control for fast loop response and easy compensation.
The EV4458DQT-00A is an evaluation board for the MP4458, a high frequency step-down switching regulator with an integrated internal high-side high voltage power MOSFET. The IC provides 1A output with current mode control for fast loop response and easy compensation.
The frequency foldback helps prevent inductor current runaway during startup and thermal shutdown provides reliable, fault tolerant operation.
By switching at 4MHz, the MP4458 prevents EMI (Electromagnetic Interference) noise problems, such as those found in AM radio and ADSL applications.
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