For noise-critical portable applications, such as GPS receivers, connectivity, and sensing, power supply designers always had to choose between longer battery run time (from higher efficiency) or higher signal chain performance (from the increased sensor sensitivity possible with a quieter power supply). For line-powered industrial or communications equipment applications, designers have been forced to dissipate significant amounts of power in LDOs to achieve the desired noise performance. Achieving both low noise and high efficiency was impossible.
Power over Ethernet technology (PoE) is an ubiquitous technology for powering Ethernet connected end equipments that may typically require licensed personnel to install, such as connected lighting, wireless access points, 5G remote radio units and more. As a standard-driven IC technology, suppliers can rest easy that IEEE 802.3 compliant portfolios offer solutions at both the source and input to loads that are fully interoperable and include many features to empower greater flexibility and reliability.
Quiescent current, or IQ for short, is one of the most critical design concepts for power supply designers to master. IQ, or the amount of current when your IC is in a no-load or non-switching state, may be an easy concept to digest at first, but can come with tradeoff decisions. The resources below can help demystify IQ, as well as provide a path forward with TI’s new starting line-up of ultra-low power management ICs.
Keep these resources in your toolbox, and come back often to ensure you’re effectively optimizing your whole power tree for optimal system lifetime
This sections covers tips for selecting the appropriate capacitors for your switching power supply.
This sections covers tips for selecting the appropriate inductors for your switching power supply.
View a broad curriculum of training for designing with various power supply topologies, as well as step by step instructions to build complete power topology reference designs.
Get tips, tricks and techniques to solve common power supply design challenges with power experts.
This training series will teach you the following:
- How to use WEBENCH Power Architect
- What are the FPGA Power Requirements? Learn ways to power FPGAs using Simple Switcher(R) Power Modules
In this training series, you will learn how the PMBus communication interface powers ASIC, FPGA, and DDR Rail power designs. Browse through the following sessions:
- Part 1: ASIC
- Part 2: Adaptive Voltage Scaling (AVS)
- Part 3: PMBus in Manufacturing
- Part 4: Telemetry
Learn why it is important to have active DDR VTT terminators. TI offers a large portfolio of DDR2/3/4 2-in-1 VDDQ and VTT power solutions, as well as stand-alone, active DDR VTT terminators, both switchers and LDOs.
For more DDR memory power information, visit www.ti.com/ddr
These training videos will be used to better understand LDOs, and include information on designing the best ADC power supply, stabilizing an LDO, measuring LDO noise and power supply rejection ratio, measuring thermal resistance between junction temperature and ambiance, and more.
These videos provide a variety of power design advice, from suggestions on testing power supplies to reducing electromagnetic interference. Designers working with DC/DC, SEPIC and other topologies can find design tips from TI’s leading power experts.
When it comes to MOSFET datasheets, you have to know what you’re looking for. While certain parameters are obvious and explicit (BVDSS, RDS(ON), gate charge), others can be ambiguous at best (ID, SOA curves), while others can be downright useless at times (see: switching times).