Power management

Technical solutions, industry trends and insights for designing and managing your power supplies.

Manuel Diaz Corrada
- Oct 1, 2019
When to use rechargeable batteries in small battery applications

From starting a car to powering a television remote, batteries provide the power that makes everyday objects possible. Yet not all batteries are made equal. Some are rated for lower temperatures, while others can provide higher peak-current discharge...
Andreas Schaefer
- Sep 30, 2019
Is there a universal tool for DC/DC voltage conversion?

Most applications or subcircuits require a constant voltage supply within a certain voltage tolerance window in order to operate properly. Battery-driven applications such as wireless sensors and personal handheld devices need voltage conversion to g...
Abhinav.Sharma
- Sep 27, 2019
Using low-Iq voltage supervisors to extend battery life in handheld electronics

As electronics become more portable, the need for high-accuracy integrated circuits with a small footprint and low quiescent current (I Q ) increases. To monitor key voltage rails in handheld electronics such as electric toothbrushes and personal shavers, design engineers typically choose a simple voltage supervisor and look for devices that enable...
Iven Su
- Sep 23, 2019
Tips for making your embedded system’s power rail design smaller

Achieving a small power rail solution size is one of the highest priorities for embedded system engineers, especially for those designing industrial and communications equipment such as drones or routers. Compared to models released a few years ago, ...
Xavier de Bellabre
- Sep 17, 2019
Options for reducing the MLCC count for DC/DC switching regulators

Multilayer ceramic capacitors (MLCCs) are popular in electronic circuits, particularly for decoupling power supplies, but have become harder to procure due to a severe market shortage of MLCCs in larger case sizes, which began in 2018. Market indicat...
JCHK
- Sep 10, 2019
Understanding the difference between capacitors, capacitance and capacitive drop power supplies

Knowing the difference between a capacitor’s rated value and its actual capacitance is key to ensuring a reliable design. This is especially true when considering high-voltage capacitors used in capacitive drop power supplies for equipment like...
Alan Lee
- Aug 29, 2019
Overcoming design challenges for low quiescent current in small, battery-powered devices

This post was originally authored by Manuel Diaz Corrada . Thanks to advances in miniaturization, Bluetooth® communication and embedded processing, modern hearing aids have more features than ever, from streaming music to being able to ...
Jim Bird
- Aug 21, 2019
How to avoid the pain of a discharged device

Frustration caused by a dead mobile device battery is not limited to adults with phones. Children too young to read can transform from charming angels to noisy demons when their tablet battery dies. This can be especially painful when it occurs during a long car ride. I have seen this happen, and recommend taking all reasonable steps to avoid it...
eric yao
- Jul 17, 2019
Layout matters: solving pinout assignment issues for DC/DC converters in WCSP packages

The miniaturization trend in consumer electronics has taken hold for good. Consumers are demanding smaller electronics with better features: more flash capacity in solid-state drives, faster smartphones, more integrated communication modules, etc. To achieve this, engineers must look for increasingly power dense solutions. One challenge associated with...
Chris Glaser
- Jul 15, 2019
Do all rails need low Iq?

All designers of ultra-low power systems are concerned about battery life. How much time will elapse before the battery in a fitness tracker will need recharging? Or, for primary cell systems, how long will it be before a technician must service the smart meter and change the battery? Clearly, the design goal is maximum battery runtime. For a fitness...

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