Power Integrity

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Measuring sub-milliOhms is difficult.  Getting low noise, sub-milliOhm measurements in very small circuits is a bit more difficult.  We recently had the opportunity to support R&D Altanova in performing this difficult measurement, here are some of the results.

If you want help measuring things, there’s no cheaper way to do it than this!

Read Eric’s suggestions on measured voltage noise and download a free sample of Eric and Larry’s new PDN Design book.

Analog Devices, Inc., which recently acquired Linear Technology Corporation, announces the LTC7820, a high-power fixed ratio charge pump DC/DC controller that eliminates the power inductor in a non-isolated intermediate bus converter, allowing up to a 50 percent reduction in circuit size and up to 4000 W/in³ power density.

We have to use enough capacitors so that the PDN functions properly. At the same time, to keep cost and size in check, we want to avoid overdesign and not use capacitors unnecessarily. Read on for advice on how to find the balance.

Analog Devices, Inc., which recently acquired Linear Technology Corporation, announces the LTC3246, a compact, low noise buck-boost charge pump with integrated watchdog timer capable of up to 500 mA of output current.