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353 Results

Capacitor self heating

This section will cover the effect of capacitor self heating on your DCDC design.

Compensation network selection for the TPS54824

This section will cover selection of the compensation components for the TPS54824

Solution Comparison

This section will compare the schematics and components chosen for the 3 solutions used in this comparis

Closed Loop Analysis

This section will compare the closed loop analysis of the 3 different solutions.

Transient Response

This section will compare the transient response of the 3 solutions.

Output Ripple and Jitter

This section will compare the out put ripple and jitter for the 3 different solutions

Efficiency

This section will compare the efficiency results for each of the 3 solutions

Thermals

This section will compare the thermal images and results for the 3 solutions tested.

Solutions Size Comparison

This section will compare the size of the solution for the 3 different designs.

Cost Compsarison

This section will compare the bill of material cost for each solution used.

Summary

Summary of the testing results

Low EMI and Noise performance with DC/DC switching regulators

Concepts of Switching Regulator EMI and Noise Mitigation

Before we dive into specific application-based examples of noise and EMI mitigation, let's start with the basics. What is noise? What is EMI? What is ripple? How are they measured? What are some common approaches to limiting their effects? This section discusses these topics with a more conceptual approach to serve as a primer for the rest of the series. 

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Low EMI and Noise performance with DC/DC switching regulators

EMI and Noise Mitigation Techniques in Practice

Now that we understand the sources of EMI and noise in switching regulators, and some of the common approaches to mitigating each, let's take a closer look at real-world examples of reducing their effects. In this section we will examine the impacts of various mitigation techniques to help you decide which approach makes the most sense in your design. Techniques covered in this discussion include external component placement, filter options and design, frequency manipulation via spread spectrum or dithering, snubbers, boot resistors, and more.

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Low EMI and Noise performance with DC/DC switching regulators

Achieving low noise and high efficiency for noise-sensitive analog loads

Noise and EMI can be detrimental to sensitive analog signal chain circuitry. For this reason, many engineers automatically default to linear regulators. But, in doing so, they are essentially trading one problem (noise) for another (heat dissipation). In this section we will discuss what types of signal chain loads can be driven directly by a switching regulator to get low noise and EMI without sacrificing efficiency. We will also discuss when a linear regulator is absolutely needed to reach levels of noise not possible with a switcher.

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Low EMI and Noise performance with DC/DC switching regulators

Low EMI and low noise DC/DC conversion in Automotive applications

Because of the potential havoc that interference can wreak in radio and safety critical systems, automotive electronics are subject to the most stringent EMI standards- the most common being CISPR25 Class-5. The materials below provide a discussion around the sources of EMI in an automotive environment and a comprehensive blueprint to understanding how to minimize it's effects.

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An Introduction to Multiphase Buck Regulators

The below introductory section features a video briefly discussing what exactly multi-phase buck regulators are, what applications they're suited for, and some of the challenges associated with implementing them. Additionally, the listed resources dive a little deeper into the topics covered in the video, providing further instruction in the beginning of your multiphase journey. 

White Papers 

Designing with Multiphase

In designing with multiphase, Carmen works through a six-phase design for powering the core voltage of a networking ASIC, Marketing Manager George Lakkas explains why multiphase converters are ideal for high currents, and TI engineers blog about common concerns and use contexts.

Blogs

Testing in the Lab

In testing in the lab, Carmen takes a six phase buck regulator through basic validation testing in the lab with plenty of tips and waveforms shared. Let Carmen show you how to test transient response, input and output ripple, phase stability, and thermal performance. Additionally, TI engineers blog about various lab tricks related to multiphase devices.

Blogs

Optimizing PCB layout

PCB layout tips to manage heat dissipation with your switching regulator

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Packaging

Another way to manage thermals is through IC packaging. Smaller and smaller packages continue to be introduced as output currents trend upward. Learn more about the packaging technologies that aid heat dissipation under these challenging conditions and enable high power density.

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353 Results
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