Low IQ LDO Regulators for IoT Sensors
Semtech Corporation today announced a new product to its nanoSmart® platform of low power, LDO regulators that targets applications for Internet of Things (IoT) sensors including Semtech’s LoRa® devices and wireless radio frequency technology (LoRa Technology).
A consistent voltage output with low noise (100μVRMS) is necessary for low-power radio devices, such as LoRa-based sensors, to function without noise interference with radio information transmission. The new nanoSmart SC573 device’s low quiescent current (50μA) enables energy savings in everyday products by extending operating life for battery-powered IoT sensors up to 10 years.
The IC is intended for developers designing solutions for industrial and consumer applications including smart metering and smart building.
“Semtech’s new nanoSmart LDO is essential for low power devices that need continuous supply voltage,” said Francois Ricodeau, Senior Product Line Manager for Semtech’s Wireless and Sensing Products Group. “The combined functionality of low noise and energy savings makes nanoSmart the regulator of choice for LoRa-based applications, and consumer and industrial electronics.”
The new nanoSmart LDO is currently available in 2 voltages (3.3V and 1.8V) and is priced at $0.130 in volumes of 10,000 units.
- Shutdown current — 100nA
- Output noise — 100μVRMS /V
- Quiescent supply current — 50μA
- Input voltage range — 2.3V to 5.5V
- Single 300mA (maximum) output
- Internal 100Ω output discharge
- Dropout at 300mA load — 180mV
About Semtech’s nanoSmart® LDOs
Semtech nanoSmart ultra-low power technology enables energy savings in everyday products. The nanoSmart LDO products support multiple energy accumulation technologies including thermal, RF and indoor and outdoor solar. The platform implements advanced system power management and has a real-time clock making it suited for remote sensing and control applications.