

Overview
The TPS5402D is a DC DC Converter made by Texas Instruments in a SOIC-8 package with 8 pins. -40℃~+85℃@(TA) 1 1.1MHz 1.7A 100uA 3.5V~28V Adjustable Buck Buck Built-in No SOIC-8 DC-DC Converters ROHS.
PCBKit's library has its KiCad symbol (Celestial_Power_Switchmode:TI TPS5402D, from Altium's library) and its footprint (Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. 3,445 are in stock at JLCPCB (part C141841). 1 open-source board in 1 repository on GitHub use it.
Symbol
Footprint
Parameters
13- Features
- Cycle-by-cycle current limiting
- Frequency - Switching
- 1.1MHz
- Function
- Step-down type
- Number of Outputs
- 1
- Operating Temperature
- -40℃~+85℃@(TA)
- Output Current
- 1.7A
- Output Type
- Adjustable
- Output Voltage
- 776mV~824mV
- Quiescent Current
- 100uA
- Switch tube (built-in/external)
- Built-in
- Synchronous Rectifier
- No
- Topology
- Buck
- Voltage - Supply
- 3.5V~28V
Order codes
1- TPS5402DRLCSC C141841
Pinout
8| Pin | Name | Type |
|---|---|---|
| 1 | BOOT | Passive |
| 2 | VIN | Passive |
| 3 | ROSC | Passive |
| 4 | SS | Passive |
| 5 | VSENSE | Passive |
| 6 | COMP | Passive |
| 7 | GND | Passive |
| 8 | LX | Passive |
Open-source boards using it
All 1- 4 layers122 × 122 mm

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Is there a KiCad symbol and footprint for the TPS5402D?
Yes. The symbol is Celestial_Power_Switchmode:TI TPS5402D and the footprint Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the TPS5402D?
SOIC-8, with 8 pins. Its footprint is drawn on this page.
Where is the TPS5402D datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the TPS5402D?
JLCPCB lists it as part C141841, with 3,445 in stock; the sellers' links on this page open their listings.
What can replace the TPS5402D?
Parts like it in the library: the XL1509-5.0E1 by XLSEMI, the XL1509-ADJE1 by XLSEMI, the XL1410E1 by XLSEMI and the TPS54231D by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the TPS5402D?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8XL1509-5.0E1
SOIC-8-40℃~+85℃ 1 150kHz 2A 2mA 4.5V~40V 5V Buck Buck Built-in Fixed No SOIC-8 DC-DC Converters ROHSXLSEMIDC-DC ConvertersXL1509-ADJE1
SOIC-8-40℃~+85℃ 1 1.23V~37V 127kHz~173kHz 2A 2mA 4.5V~40V Adjustable Buck Buck Built-in No SOIC-8 DC-DC Converters ROHSXLSEMIDC-DC ConvertersXL1410E1
SOIC-8-40℃~+125℃@(TJ) 1 1.222V~25V 2A 3.6V~28V 323kHz~437kHz、380kHz 3mA Adjustable Buck Buck Built-in No SOIC-8 DC-DC Converters ROHSXLSEMIDC-DC ConvertersTPS54231D
SOIC-8-40℃~+150℃@(TJ) 1 110uA 2A 3.5V~28V 570kHz 800mV~25V Adjustable Buck Buck Built-in No SOIC-8 DC-DC Converters ROHSTexas InstrumentsDC-DC ConvertersXL1509-3.3
SOP-8-40℃~+125℃@(TJ) 1 150kHz 2A 2mA 3.3V 4.5V~40V Buck Buck Built-in Fixed No SOP-8 DC-DC Converters ROHSUMWDC-DC ConvertersXL1509-ADJ
SOIC-8-40℃~+125℃ 1 1.23V~37V 150kHz 2A 2mA 4.5V~40V Adjustable Buck Buck Built-in No SOIC-8 DC-DC Converters ROHSUMWDC-DC ConvertersXL1509-12E1
SOIC-8-40℃~+85℃@(TA) 1 12V 150kHz 2A 2mA 4.5V~40V Buck Buck Built-in Fixed No SOIC-8 DC-DC Converters ROHSXLSEMIDC-DC ConvertersXL1509-3.3E1
SOP-8-40℃~+85℃ 1 150kHz 2A 2mA 3.3V 4.5V~40V Buck Buck Built-in Fixed No SOP-8 DC-DC Converters ROHSXLSEMIDC-DC Converters