

Overview
The SX1276IMLTRT is a RF Transceiver IC made by SEMTECH in a QFN-28-EP(6x6) package with 29 pins. -148dBm -40℃~+85℃ -、20mA 1.8V~3.7V 10.8mA 137MHz~1.02GHz 20dBm 300Kbps LoRa SPI transceiver QFN-28-EP(6x6) RF Transceiver ICs ROHS.
PCBKit's library has its KiCad symbol (RF:SX1276, from KiCad's library) and its footprint (Package_DFN_QFN:QFN-28-1EP_6x6mm_P0.65mm_EP4.8x4.8mm, from KiCad's library), ready for a KiCad board. 5,459 are in stock at JLCPCB (part C80171). 3 open-source boards in 3 repositories on GitHub use it.
Symbol
Footprint
Parameters
12- Applications
- LoRa
- Current Of Transmitting
- 20mA
- Data Rate
- 300Kbps
- Features
- CRC check function
- Frequency Range
- 137MHz~1.02GHz
- Interface
- SPI
- Operating Temperature
- -40℃~+85℃
- Output Power
- 20dBm
- Receive Current
- 10.8mA
- Sensitivity
- -148dBm
- Type
- transceiver
- Voltage - Supply
- 1.8V~3.7V
Order codes
1- SX1276IMLTRTLCSC C80171
Pinout
29| Pin | Name | Type |
|---|---|---|
| 1 | RFI_LF | Input |
| 2 | VR_ANA | Power in |
| 3 | VBAT_ANA | Power in |
| 4 | VR_DIG | Power in |
| 5 | XTA | Input/output |
| 6 | XTB | Input/output |
| 7 | RESET | Input |
| 8 | DIO0 | Input/output |
| 9 | DIO1 | Input/output |
| 10 | DIO2 | Input/output |
| 11 | DIO3 | Input/output |
| 12 | DIO4 | Input/output |
| 13 | DIO5 | Input/output |
| 14 | VBAT_DIG | Power in |
| 15 | GND | Power in |
| 16 | SCK | Input |
| 17 | MISO | Output |
| 18 | MOSI | Input |
| 19 | NSS | Input |
| 20 | RXTX/RF_MOD | Output |
| 21 | RFI_HF | Input |
| 22 | RFO_HF | Output |
| 23 | GND | Passive |
| 24 | VBAT_RF | Power in |
| 25 | VR_PA | Power out |
| 26 | GND | Passive |
| 27 | PA_BOOST | Power out |
| 28 | RFO_LF | Output |
| 29 | GND | Passive |
Open-source boards using it
All 3- 4 layers60 × 66.5 mm

- 4 layers55.4 × 63.3 mm

Lora sensor tag
VladimirBioACS/lora-sensor-tag-pcb-project
Simple LoRa humidity and temperature monitoring device, based on the ESP32-Wroom-D SoC module. Repo contains KiCAD 10 project for LoRa Sensor TAG device with external component libs.
147 parts1 - 4 layers88 × 94.5 mm

Flight computer dev board sx1276
proveskit/development_boards
Miscellaneous dev boards to test the components of the PROVES Kit on a smaller scale.
183 parts1
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Is there a KiCad symbol and footprint for the SX1276IMLTRT?
Yes. The symbol is RF:SX1276 and the footprint Package_DFN_QFN:QFN-28-1EP_6x6mm_P0.65mm_EP4.8x4.8mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the SX1276IMLTRT?
QFN-28-EP(6x6), with 29 pins. Its footprint is drawn on this page.
Where is the SX1276IMLTRT datasheet?
SEMTECH publishes it: the Datasheet link on this page opens it.
Where can I order the SX1276IMLTRT?
JLCPCB lists it as part C80171, with 5,459 in stock; the sellers' links on this page open their listings.
What can replace the SX1276IMLTRT?
Parts like it in the library: the SX1278IMLTRT by SEMTECH, the SX1273IMLTRT by SEMTECH and the SX1279IMLTRT by SEMTECH. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the SX1276IMLTRT?
3 boards in 3 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
3SX1278IMLTRT
QFN-28-EP(6x6)-148dBm -40℃~+85℃ 1.8V~3.7V 10.8mA 137MHz~525MHz 20dBm 29mA 300Kbps LoRa SPI transceiver QFN-28-EP(6x6) RF Transceiver ICs ROHSSEMTECHRF Transceiver ICsSX1273IMLTRT
QFN-28-EP(6x6)-130dBm -40℃~+85℃ 1.8V~3.7V 10.5mA 18mA 20dBm 300Kbps 802.15.4 860MHz~1.02GHz SPI QFN-28-EP(6x6) RF Transceiver ICs ROHSSEMTECHRF Transceiver ICsSX1279IMLTRT
QFN-28-EP(6x6)-148dBm -40℃~+85℃ 1.8V~3.7V 137MHz~1.02GHz 20dBm 20mA 300Kbps 802.15.4 9.9mA SPI QFN-28-EP(6x6) RF Transceiver ICs ROHSSEMTECHRF Transceiver ICs