

Overview
The SPX431LS-L is a voltage Regulators Linear, Low Drop Out (LDO) Regulator made by SIPEX with 8 pins. 0℃~+105℃@(Tj) 1 2.495V~20V Adjustable Positive - Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:TL431ACDT-TP, from EasyEDA) and its footprint (EasyEDA_Cloud:SOIC-8_L4.9-W3.9-P1.27-LS6.0-BL, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C3749913). 1 open-source board in 1 repository on GitHub use it.
Symbol
Footprint
Parameters
5- Number of Outputs
- 1
- Operating Temperature
- 0℃~+105℃@(Tj)
- Output Configuration
- Positive
- Output Type
- Adjustable
- Output Voltage
- 2.495V~20V
Order codes
1- SPX431LS-LLCSC C3749913
Pinout
8| Pin | Name | Type |
|---|---|---|
| 1 | CATHODE | Unspecified |
| 2 | ANODE | Unspecified |
| 3 | ANODE | Unspecified |
| 4 | NC | Unspecified |
| 5 | NC | Unspecified |
| 6 | ANODE | Unspecified |
| 7 | ANODE | Unspecified |
| 8 | REF | Unspecified |
Open-source boards using it
All 1- 2 layers93.7 × 70 mm

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<iframe src="https://pcbkit.io/embed/parts/sipex/SPX431LS-L" title="SPX431LS-L in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/sipex/SPX431LS-L.jpg" alt="SPX431LS-L" width="1200" height="900">[](https://pcbkit.io/parts/sipex/SPX431LS-L)Questions
Is there a KiCad symbol and footprint for the SPX431LS-L?
Yes. The symbol is EasyEDA_Cloud:TL431ACDT-TP and the footprint EasyEDA_Cloud:SOIC-8_L4.9-W3.9-P1.27-LS6.0-BL, both drawn on this page. PCBKit places them on a board for you when you design with it.
Where is the SPX431LS-L datasheet?
SIPEX publishes it: the Datasheet link on this page opens it.
Where can I order the SPX431LS-L?
JLCPCB lists it as part C3749913, with 0 in stock; the sellers' links on this page open their listings.
What can replace the SPX431LS-L?
Parts like it in the library: the TLE9351BVSJXTMA1 by Infineon Technologies, the NCV4269CD250 by onsemi, the IFX2931GV33 by Infineon Technologies and the TLE4268GSXUMA1 by Infineon Technologies. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the SPX431LS-L?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.
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