PMP7837 Reference Design

Texas Instruments

Power Reference Design for 450W Automotive Audio Amplifier

Description

The PMP7837 is a 4-phase synchronous boost converter that can take a 6-17V input and put out 24V at 450W. It is used for powering up to eight 50W automotive trunk amplifiers. The 4-phase synchronous design with 450kHz switching frequency per phase results in a compact and efficient circuit well suited for such applications.

Features
  • Mininum 6V input voltage supports US automotive cold cranking requirement 96% peak efficiency at 12V input 1.8MHz effective switching frequency Ripple cancellation as a result of 4-phase design Synchronous operation saves power and eases thermal design.
Applications
  • Automotive external amplifier
  • Voltage conditioning module
  • Aftermarket audio amplifier
  • Mobile robot CPU board
Product Categories
  • Power management

Parts

Part Number Name Companion Part
CSD18501Q5A CSD18501Q5A Buy Datasheet
LM5122 LM5122 Buy Datasheet
LM5122-Q1 LM5122-Q1 Buy Datasheet

Bill Of Materials

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Schematic

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Design File

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Test Data

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Other Documents

Title Updated Type Size (KB)
PMP7837 BOM (Rev. A) 20 Feb 2014 PDF 28
PMP7837 Schematic (Rev. A) 20 Feb 2014 PDF 136
PMP7837 Gerber 18 Feb 2014 ZIP 1087