The SX1250IMLTRT is a RF Transceiver IC made by SEMTECH in a QFN-24-EP(4x4) package with 25 pins. -40℃~+85℃ 118mA 150MHz~960MHz 22dBm 3V~3.6V ISM SPI、UART transceiver QFN-24-EP(4x4) RF Transceiver ICs ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:SX1250IMLTRT, from EasyEDA) and its footprint (EasyEDA_Cloud:QFN-24_L4.0-W4.0-P0.50-BL-EP2.6, from EasyEDA), ready for a KiCad board. 12 are in stock at JLCPCB (part C1844931). 2 open-source boards in 2 repositories on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | VR_PA | Unspecified |
| 2 | VDD_IN | Unspecified |
| 3 | XTA | Unspecified |
| 4 | XTB | Unspecified |
| 5 | DIO3 | Unspecified |
| 6 | VREG | Unspecified |
| 7 | GND | Unspecified |
| 8 | DCC_SW | Unspecified |
| 9 | VBAT_RF | Unspecified |
| 10 | VBAT_DIO | Unspecified |
| 11 | DIO5 | Unspecified |
| 12 | DIO2 | Unspecified |
| 13 | DIO1 | Unspecified |
| 14 | BUSY | Unspecified |
| 15 | NRESET | Unspecified |
| 16 | MISO | Unspecified |
| 17 | MOSI | Unspecified |
| 18 | SCK | Unspecified |
| 19 | NSS | Unspecified |
| 20 | GND | Unspecified |
| 21 | DIO4 | Unspecified |
| 22 | RFI_P | Unspecified |
| 23 | RFI_N | Unspecified |
| 24 | RFO | Unspecified |
| 25 | GND | Unspecified |
dpmj/masters-thesis-lora-gateway-compute-module-cubesat-payload-pcb
Hardware source (KiCad) from my master's thesis in telecommunications engineering at the Polytechnic University of Valencia, 2025.
Rynxie/tdrf-lorawan-gateway-pcb
A custom-designed, open-source LoRaWAN gateway PCB powered by the Allwinner V3s ARM Cortex-A7 processor and the Semtech SX1302 LoRa concentrator.
<iframe src="https://pcbkit.io/embed/parts/semtech/SX1250IMLTRT" title="SX1250IMLTRT in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/semtech/SX1250IMLTRT.jpg" alt="SX1250IMLTRT" width="1200" height="900">[](https://pcbkit.io/parts/semtech/SX1250IMLTRT)Yes. The symbol is EasyEDA_Cloud:SX1250IMLTRT and the footprint EasyEDA_Cloud:QFN-24_L4.0-W4.0-P0.50-BL-EP2.6, both drawn on this page. PCBKit places them on a board for you when you design with it.
QFN-24-EP(4x4), with 25 pins. Its footprint is drawn on this page.
SEMTECH publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C1844931, with 12 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the LLCC68IMLTRT by SEMTECH and the MXL608-AG-T by MaxLinear. Check their datasheets: a part that fits the footprint may still differ in its ratings.
2 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
