

Overview
The TPS54540DDA is a DC DC Converter made by Texas Instruments in a SO-8-EP package with 9 pins. -40℃~+150℃@(TJ) 1 2.5MHz 4.5V~42V 5A 800mV~41.1V Adjustable Buck Buck Built-in No SO-8-EP DC-DC Converters ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:TPP60308-ES1R-S, from EasyEDA) and its footprint (EasyEDA_Cloud:SO-8_L4.9-W3.9-P1.27-LS6.0-BL-EP, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C96121). 4 open-source boards in 3 repositories on GitHub use it.
Symbol
Footprint
Parameters
13- Features
- Overcurrent Protection, Light load efficient mode, Cycle-by-cycle current limiting, Frequency synchronization
- Frequency - Switching
- 2.5MHz
- Function
- Step-down type
- Number of Outputs
- 1
- Operating Temperature
- -40℃~+150℃@(TJ)
- Output Current
- 5A
- Output Type
- Adjustable
- Output Voltage
- 800mV~41.1V
- Quiescent Current
- 146uA
- Switch tube (built-in/external)
- Built-in
- Synchronous Rectifier
- No
- Topology
- Buck
- Voltage - Supply
- 4.5V~42V
Order codes
1- TPS54540DDALCSC C96121
Pinout
9| Pin | Name | Type |
|---|---|---|
| 1 | BOOT | Unspecified |
| 2 | VIN | Unspecified |
| 3 | EN | Unspecified |
| 4 | RT/CLK | Unspecified |
| 5 | FB | Unspecified |
| 6 | COMP | Unspecified |
| 7 | GND | Unspecified |
| 8 | SW | Unspecified |
| 9 | EP | Unspecified |
Open-source boards using it
All 4- 4 layers99.5 × 65.1 mm

- 2 layers50 × 50 mm

Power board
ZhuYanzhen1/MM32_CLion
本项目是全国大学生智能车竞赛GDUT 2022年极速越野组的项目文件。采用了LQR控制器和多速率卡尔曼融合算法,并在单片机上实现。This project is the project document for the GDUT 2022 Extreme Off-Road Category of the National Student Intelligent Vehicle Competition.
88 parts58AGPL-3.0 - 4 layers100 × 50 mm

Superball powerboard
kcaluwae/tensegrity-powerboard
pcb design for the SUPERball power board
161 parts1 - 4 layers100 × 50 mm

Superball powerboard pmos
kcaluwae/tensegrity-powerboard
pcb design for the SUPERball power board
166 parts1
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Is there a KiCad symbol and footprint for the TPS54540DDA?
Yes. The symbol is EasyEDA_Cloud:TPP60308-ES1R-S and the footprint EasyEDA_Cloud:SO-8_L4.9-W3.9-P1.27-LS6.0-BL-EP, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the TPS54540DDA?
SO-8-EP, with 9 pins. Its footprint is drawn on this page.
Where is the TPS54540DDA datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the TPS54540DDA?
JLCPCB lists it as part C96121, with 0 in stock; the sellers' links on this page open their listings.
What can replace the TPS54540DDA?
Parts like it in the library: the TPS54627DDAR by Texas Instruments, the AP64500SP by Diodes Incorporated, the TPS54540BQDDARQ1 by Texas Instruments and the TPS54560DDA by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the TPS54540DDA?
4 boards in 3 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
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