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MP9459 - Step-Down Converter

Description

The MP9459 is a fully integrated, highfrequency, synchronous, rectified, step-down, switch-mode converter with internal power MOSFETs.

The device is a compact solution that achieves 4A of output current over a wide input range with excellent load and line regulation.

Features

  • include short-circuit protection (SCP), over-current protection (OCP), under-voltage protection (UVP), and thermal shutdown. The MP9459 requires a minimal number of readily available, standard external components. It is available in a space-saving SOT563 (1.6mmх1.6mm) package.

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Full PDF Text Transcription

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MP9459 17V, 4A, 600kHz, High-Efficiency, Synchronous, Step-Down Converter in an SOT563 Package DESCRIPTION The MP9459 is a fully integrated, highfrequency, synchronous, rectified, step-down, switch-mode converter with internal power MOSFETs. The device is a compact solution that achieves 4A of output current over a wide input range with excellent load and line regulation. It uses synchronous mode operation for higher efficiency over the output current load range. Constant-on-time (COT) control operation provides very fast transient response, easy loop design, and very tight output regulation. Full protection features include short-circuit protection (SCP), over-current protection (OCP), under-voltage protection (UVP), and thermal shutdown.
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