AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C)

Texas Instruments

Published Date: 04/23/2013

Description

When designing a high frequency switching regulated power supply layout is very important. Using agood layout can solve many problems associated with these types of supplies. The problems due to a badlayout are often seen at high current levels and are usually more obvious at large input to output voltagedifferentials. Some of the main problems are loss of regulation at high output current

Parts

Part Number Name Companion Part
LM22670TJ-5.0/NOPB LM22670TJ-5.0/NOPB Buy Datasheet
LM22670TJ-ADJ/NOPB LM22670TJ-ADJ/NOPB Buy Datasheet
LM22671MRX-5.0/NOPB LM22671MRX-5.0/NOPB Buy Datasheet
LM22671QMR-ADJ/NOPB LM22671QMR-ADJ/NOPB Buy Datasheet
LM22671QMRE-5.0/NOPB LM22671QMRE-5.0/NOPB Buy Datasheet
LM22671QMRX-ADJ/NOPB LM22671QMRX-ADJ/NOPB Buy Datasheet
LM22672MR-ADJ/NOPB LM22672MR-ADJ/NOPB Buy Datasheet
LM22672MRE-5.0/NOPB LM22672MRE-5.0/NOPB Buy Datasheet
LM22672MRX-ADJ/NOPB LM22672MRX-ADJ/NOPB Buy Datasheet
LM22672QMR-5.0/NOPB LM22672QMR-5.0/NOPB Buy Datasheet
LM22672QMRE-5.0/NOPB LM22672QMRE-5.0/NOPB Buy Datasheet
LM22672QMRE-ADJ/NOPB LM22672QMRE-ADJ/NOPB Buy Datasheet
LM22673MR-ADJ/NOPB LM22673MR-ADJ/NOPB Buy Datasheet
LM22673MRX-5.0/NOPB LM22673MRX-5.0/NOPB Buy Datasheet
LM22673QMR-ADJ/NOPB LM22673QMR-ADJ/NOPB Buy Datasheet
LM22673QMRE-5.0/NOPB LM22673QMRE-5.0/NOPB Buy Datasheet
LM22673QMRE-ADJ/NOPB LM22673QMRE-ADJ/NOPB Buy Datasheet
LM22673QTJ-ADJ/NOPB LM22673QTJ-ADJ/NOPB Buy Datasheet
LM22673TJ-5.0/NOPB LM22673TJ-5.0/NOPB Buy Datasheet
LM22673TJE-5.0/NOPB LM22673TJE-5.0/NOPB Buy Datasheet
LM22673TJE-ADJ/NOPB LM22673TJE-ADJ/NOPB Buy Datasheet
LM22674MRE-5.0/NOPB LM22674MRE-5.0/NOPB Buy Datasheet
LM22674MRE-ADJ/NOPB LM22674MRE-ADJ/NOPB Buy Datasheet
LM22674MRX-5.0/NOPB LM22674MRX-5.0/NOPB Buy Datasheet
LM22674MRX-ADJ/NOPB LM22674MRX-ADJ/NOPB Buy Datasheet
LM22674QMR-5.0/NOPB LM22674QMR-5.0/NOPB Buy Datasheet
LM22674QMRE-ADJ/NOPB LM22674QMRE-ADJ/NOPB Buy Datasheet
LM22675MR-5.0/NOPB LM22675MR-5.0/NOPB Buy Datasheet
LM22675MRE-ADJ/NOPB LM22675MRE-ADJ/NOPB Buy Datasheet
LM22675QMR-ADJ/NOPB LM22675QMR-ADJ/NOPB Buy Datasheet
LM22675QMRE-ADJ/NOPB LM22675QMRE-ADJ/NOPB Buy Datasheet
LM22675QMRX-ADJ/NOPB LM22675QMRX-ADJ/NOPB Buy Datasheet
LM22676MR-5.0/NOPB LM22676MR-5.0/NOPB Buy Datasheet
LM22676MRE-5.0/NOPB LM22676MRE-5.0/NOPB Buy Datasheet
LM22676QMR-5.0/NOPB LM22676QMR-5.0/NOPB Buy Datasheet
LM22676QMRE-5.0/NOPB LM22676QMRE-5.0/NOPB Buy Datasheet
LM22676QMRX-5.0/NOPB LM22676QMRX-5.0/NOPB Buy Datasheet
LM22676QMRX-ADJ/NOPB LM22676QMRX-ADJ/NOPB Buy Datasheet
LM22676QTJ-ADJ/NOPB LM22676QTJ-ADJ/NOPB Buy Datasheet
LM22676QTJE-ADJ/NOPB LM22676QTJE-ADJ/NOPB Buy Datasheet
LM22676TJE-ADJ/NOPB LM22676TJE-ADJ/NOPB Buy Datasheet
LM22677QTJE-5.0/NOPB LM22677QTJE-5.0/NOPB Buy Datasheet
LM22677TJ-5.0/NOPB LM22677TJ-5.0/NOPB Buy Datasheet
LM22677TJE-5.0/NOPB LM22677TJE-5.0/NOPB Buy Datasheet
LM22677TJE-ADJ/NOPB LM22677TJE-ADJ/NOPB Buy Datasheet
LM22678QTJ-5.0/NOPB LM22678QTJ-5.0/NOPB Buy Datasheet
LM22678QTJ-ADJ/NOPB LM22678QTJ-ADJ/NOPB Buy Datasheet
LM22678QTJE-ADJ/NOPB LM22678QTJE-ADJ/NOPB Buy Datasheet
LM22678TJ-5.0/NOPB LM22678TJ-5.0/NOPB Buy Datasheet
LM22678TJE-5.0/NOPB LM22678TJE-5.0/NOPB Buy Datasheet
LM22679QTJE-5.0/NOPB LM22679QTJE-5.0/NOPB Buy Datasheet
LM22679TJE-ADJ/NOPB LM22679TJE-ADJ/NOPB Buy Datasheet
LM22680MR-ADJ/NOPB LM22680MR-ADJ/NOPB Buy Datasheet
LM22680MRX-ADJ/NOPB LM22680MRX-ADJ/NOPB Buy Datasheet
LM22680QMR-ADJ/NOPB LM22680QMR-ADJ/NOPB Buy Datasheet
LM22680QMRX-ADJ/NOPB LM22680QMRX-ADJ/NOPB Buy Datasheet
LM25574Q0MTX/NOPB LM25574Q0MTX/NOPB Buy Datasheet
LM25576Q0MHX/NOPB LM25576Q0MHX/NOPB Buy Datasheet
LM2574HVM-12 LM2574HVM-12 Buy Datasheet
LM2574HVM-15/NOPB LM2574HVM-15/NOPB Buy Datasheet
LM2574HVM-5.0 LM2574HVM-5.0 Buy Datasheet
LM2574HVMX-12/NOPB LM2574HVMX-12/NOPB Buy Datasheet
LM2574HVMX-3.3/NOPB LM2574HVMX-3.3/NOPB Buy Datasheet
LM2574HVMX-5.0 LM2574HVMX-5.0 Buy Datasheet
LM2574HVMX-ADJ/NOPB LM2574HVMX-ADJ/NOPB Buy Datasheet
LM2574HVN-ADJ/NOPB LM2574HVN-ADJ/NOPB Buy Datasheet
LM2574M-12 LM2574M-12 Buy Datasheet
LM2574M-5.0/NOPB LM2574M-5.0/NOPB Buy Datasheet
LM2574M-ADJ/NOPB LM2574M-ADJ/NOPB Buy Datasheet
LM2574MX-ADJ LM2574MX-ADJ Buy Datasheet
LM2575IN LM2575IN Buy Datasheet
LM2576T-12 LM2576T-12 Buy Datasheet
LM2576T-5.0 LM2576T-5.0 Buy Datasheet
LM2576T-ADJ LM2576T-ADJ Buy Datasheet