PMP5026 Reference Design

Texas Instruments

Inverting Buck Boost Converter Using TPS40200 (12V to -8V@1.3A) Reference Design


PMP5026 uses the TPS40200 in an inverting buck boost configuration to generate a negative output from a positive input.  This type of circuit is useful in a number of applications including Audio: Communications: Military/Space etc.  This design uses a nominal 12V input to generate an output of -8V@1.3A.  The circuit also provides a way to synchronize and sequence this particular design with other power rails in the system.

  • Automotive external amplifier
  • Aftermarket audio amplifier
Product Categories
  • Power management


Part Number Name Companion Part
TPS40200 TPS40200 Buy Datasheet

Bill Of Materials

Download the bill of materials for PMP5026 Download

Other Documents

Title Updated Type Size (KB)
PMP5026 Schematic 12 Nov 2010 PDF 49
PMP5026 REVA BOM 12 Nov 2010 PDF 20