PMP30473 – Lowest noise auxiliary dual output (+5 V and -5 V) power supply reference design

16 April, 2020

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This reference design is a 2 x 1-W inverting buck-boost converter. The two output voltages (+5 V and -5 V) are produced from one single buck silicon (TPS57160). Post regulators (and post-filters) ensure ripple-free output voltages. The input voltage range covers automotive and industrial applications.

Features

Input filter ensures lowest reflected ripple
Power stage withstands surge voltages up to 42 V
Circuit tolerates cranking down to 4 V
Temperature rise is less than 20 K at full load and with nominal automotive input voltage

more information: www.ti.com

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Mike is the founder and editor of Electronics-Lab.com, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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