SX1261IMLTRT
Overview
The SX1261IMLTRT is a sub-GHz LoRa radio transceiver designed for long-range wireless applications with a focus on power efficiency. It operates within a frequency range of 150MHz to 960MHz and supports both LoRa and (G)FSK modulation, reaching sensitivities as low as -148dBm. This specific variant is optimized for low-power operation with a maximum output power of 15dBm and an integrated DC-DC converter to minimize current consumption.
Why Choose This Part
The device features an ultra-low sleep current of approximately 1.2uA and an active receive current of only 4.2mA, making it suitable for energy-harvesting or coin-cell applications. Its integrated DC-DC converter and LDO provide flexible power management, while internal programmable XTAL capacitors simplify the RF front-end design by reducing external component count.
Applications
Key Specifications
Getting Started
To begin development, engineers typically use the Semtech SX1261 evaluation kits or LoRaWAN-compatible stacks like LoRa Basics Modem. Hardware design requires careful attention to the 0.5mm pitch 24-VFQFN layout and the RF matching network specified for the target frequency band. The device is controlled via a standard SPI interface and features Channel Activity Detection (CAD) to optimize battery life during wake-up cycles.
Also Consider
