Bob Frostholm, JVD Inc.
EETimes (2/4/2013 3:26 PM EST)
Todays complex systems employ a wide variety of semiconductor technologies. From the deepest sub-nanometer processors to the analog I/O, its easy to see the need for power management devices for multiple voltages 1.0V, 1.2V, 1.5V, 1.8V, 2.2V, 2.5V, 2.8V, 3.0V, 3.3V and more all in the same box.
Dozens of companies offer thousands of chips to address these needs. Data sheets, PDKs and application notes make implementation easier than ever. If your volume is high enough, chip company application engineers are more than willing to do the design work for you. Sit back, watch YouTube, follow friends on Facebook and wait for the circuit to arrive by email. Its not quite that simple, but lets be honest, there are a lot of free resources out there to assist.
A few dozen years ago, engineers fresh out of school were assigned to the power supply team; the most boring and least challenging aspect of the system and the one most forgiving of inexperience. Could it come to that again?
Not likely. But you really should ask yourself, who is really managing your power management. Is it you or your suppliers? Who really understands your power management needs and more importantly, the solution youve implemented? Is your 7Amp 1.2V solution overkill for your 2.9Amp requirement? Could a lower cost LDO be used instead of that switcher?
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