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Five steps to a great PCB layout for a step-down converter

Especially for switch-mode power supplies (SMPSs), the printed circuit board (PCB) layout is a critical but often under appreciated step in achieving proper performance and reliability. Errors in the PCB layout cause a variety of misbehaviors including poor output voltage regulation, switching jitter, and even device failure. Issues like these should be avoided at all costs, since fixing them usually requires a PCB design modification. However, these pitfalls are easily circumvented if time and thought are spent during the PCB layout process before the first PCBs are ever ordered. This article presents five simple steps to ensure that your next step-down converter’s PCB layout is robust and ready for prototyping. When designing a server, tablet, or electronic point-ofsale machine, a best-practice option with the least risk is to simply copy the PCB layout example found on the evaluation module (EVM) and shown in the datasheet. However, this may not always be possible for various reasons. This article was created for these cases and details a five-step procedure to design a good PCB layout for any TPS62xxx integrated-switch, step-down converter. The internal MOSFETs and integrated loop-compensation circuitry greatly simplify the PCB layout of these devices by reducing the difficulty and time required to do the PCB layout. The versatile TPS62130A is used as the example step-down converter, which can be used in each of the above applications. 

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Plumbing & Mechanical

Subjects covered include labor, merchandising, training, job-site management, plus product and installation technical material. The intention is to strengthen the readers' performance as a vital link in the process which brings plumbing and hydronics products from the manufacturer to the ultimate buyer.

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Process Heating

Process Heating publishes editorial covering heat processing at temperatures below 1,000 deg Fahrenheit at end-user and OEM manufacturing facilities. Editorial focuses on technology, how-to, troubleshooting, and case histories in heat processing to assist engineers, managers, R & D personnel and purchasing agents.

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Food Engineering

Food Engineering covers manufacturing technologies in the areas of processing, packaging, food safety, plant operations, material handling and automation. Editorial focus is a mix of research-based articles, special reports, technology updates, new products and in-plant case history stories. Distributed monthly.

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CONNECTED TRANSPORTATION NEWS

CONNECTED TRANSPORTATION NEWS provides fortnightly updates on finance, government action, and new technology, as well as the latest case studies on successful new business models. Our package of news from around the world includes: Best Practices: management methods for deploying mobile, location-based technology. Next-Gen Transportation: new technology for intelligent roadway infrastructure, V2V/V2X communications, location-based services, technology deployments for rail and air, driver-less vehicles, and more. Industry Events: latest projects, acquisitions, regulations, and more. At no cost, subscribers can opt-in to become associate members of the International M2M Council, the global trade association for machine-to-machine communications, including access to the IoT Content Library, featuring case studies for transportation-sector professionals!

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CONNECTED INDUSTRIES NEWS

CONNECTED INDUSTRIES NEWS provides fortnightly updates on finance, government action, and new technology, as well as the latest case studies on successful new business models. Our package of news from around the world includes: Best Practices: management methods for monitoring/control and big data. Next-Gen Manufacturing & Agriculture: including QC management, tested cloud/SAAS solutions, SLA business models, manufacturing and communications standards, precision agriculture, data structure & ERP integration, and more. Industry Events: latest projects, acquisitions, regulations, and more. At no cost, subscribers can opt-in to become associate members of the International M2M Council, the global trade association for machine-to-machine communications, including access to the IoT Content Library, featuring case studies for industrial/agricultural professionals!

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SMART BUILDING & CONSTRUCTION NEWS

SMART BUILDING AND CONSTRUCTION NEWS provides weekly updates on finance, government action and new technology, as well as the latest case studies on successful new care models. Our package of news from around the world includes: Best Practices: management methods that consider industry standards and more efficient models of construction. Next-Gen Buildings: reporting the shift in technology that will lead to higher levels of security, comfort, and sustainability, including “building in the cloud,” crowd-sourced design, energy performance modeling, and more. Industry News: latest projects, acquisitions, regulations, and more. At no cost, subscribers can opt-in to become associate members of the International M2M Council, the global trade association for machine-to-machine communications, including access to the IoT Content Library, featuring case studies for building and construction professionals!

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SMART CITIES NEWS

SMART CITIES NEWS provides weekly updates on finance, government action and new technology, as well as the latest case studies on successful new care models. Our package of news from around the world includes: Best Practices: management methods that consider new infrastructure developments for sustainability, quality-of-life, and economic growth. Next-Gen Cities: reporting the shift in complex municipal network deployments for traffic control, smart parking, emergency services, public lighting, and more. Industry News: latest projects, regulations, and more. At no cost, subscribers can opt-in to become associate members of the International M2M Council, the global trade association for machine-to-machine communications, including access to the IoT Content Library, featuring case studies for engineering professionals!

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