SLVAFJ3
september 2023
LM5177
,
LM51772
1
Abstract
Trademarks
1
Importance of DC-DC Power Supply Layout
2
Steps for a Good Layout
2.1
Identifying Critical Circuit Paths
2.2
Optimizing Hot Loops in the Power Stage
2.3
Separating Differential Sense Lines From Power Planes
2.3.1
Using Net Ties to Separate Routing
2.4
Routing Gate-Drive and Return Paths
2.5
Controller Layout
2.6
Separate AGND and PGND
2.7
Thermal Vias
3
Tips for Layout Optimization
4
Layout Example
5
Summary
6
References
6
References
Texas Instruments,
TPS55165-Q1 Layout Guidelines
, application note.
Texas Instruments,
TPS55288 Layout Guideline
, application note
Texas Instruments,
LM5177 80-V Wide VIN Bidirectional 4-Switch Buck-Boost Controller
, data sheet.
Texas Instruments,
Four-Switch-Buck-Boost-Layout-Tip-No-1-Identifying-the-Critical-Parts-for-Layout
Texas Instruments,
Four-Switch-Buck-Boost-Layout-Tip-No-2-Optimizing-Hot-Loops-in-the-Power-Stage
Texas Instruments,
Four-Switch-Buck-Boost-Layout-Tip-No-3-Separating-Differential-Sense-Lines-From-Power-Planes
Texas Instruments,
Four-Switch-Buck-Boost-Layout-Tip-No-4-Routing-Gate-Drive-and-Return-Paths