Electronics Lab

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

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).



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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