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Layout Considerations for MAX16974/MAX16975/MAX16976 DC-DC Converters

Overview

introduction

The MAX16974 / MAX16975 / MAX16976 converters are standard buck controllers designed for automotive applications. These controllers operate via an internal high-side N-channel FET and an external freewheeling diode. Proper PCB (printed circuit board) layout, combined with appropriate external components, is crucial for reliable operation of the system and minimizing EMI radiation. The circuit shown in Figure 1 shows a typical application circuit for these high-performance converters.

Typical application circuit

Figure 1. Typical application circuit

DC and AC current paths

Figure 2 shows the AC and DC current paths for the MAX16974/MAX16975/MAX16976 family.

Figure 2a. DC current path with HSFET conducting (black) or freewheeling diode conducting (red)

Figure 2b. AC branch of the DC current path shown in Figure 2a.

Documentation

Application Note

All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.

It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2025-05-11 00:29:21

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