Smart Linear Regulator Boasts High Efficiency and Power Density

Texas Instruments (TI) has expanded its portfolio of linear regulators by introducing a smart AC/DC linear regulator. With 75 percent higher efficiency and two times the power density of other linear regulators, this device achieves the best balance between high efficiency and ultra-low noise while shrinking power-supply size. The fully integrated TPS7A78 linear regulator uses a unique switched-capacitor architecture to eliminate discrete components, including external inductors and transformers and miniature circuit breakers and interrupters, for tamper-resistant designs in applications including electronic metering in grid infrastructure and building automation.

The TPS7A78 is a non-isolated linear regulator that delivers up to 0.5 W from AC to DC with smaller, fewer components. This smart design optimizes regulation through an active bridge, switch capacitor and integrated low-dropout regulator (LDO). This design results in higher efficiency and a reduced capacitor size compared to linear regulators in traditional capacitor-drop solutions utilizing a Zener diode.

 

Key features and benefits of the TPS7A78:

Low standby power: A unique dynamic active bridge clamp pre-regulates the input voltage for optimal performance to reduce standby power to 10 mW, which is up to 75% lower compared to traditional capacitor-drop solutions.

Higher power density: The switched-capacitor architecture eliminates up to 26 discrete components, including the bridge rectifier. This architecture reduces capacitor size by 25% compared to traditional capacitor-drop solutions.

Tamper-proof design: The TPS7A78 is free of costly magnetic shielding, thus meeting the International Electrotechnical Commission (IEC) 61000-4-8 standard required by applications such as electronic metering.

Available through the TI store and authorized distributors, the TPS7A78 is offered in a 14-pin, 5-mm-by-6.5-mm thin-shrink small-outline package (TSSOP) and priced in small reels at US$1.00 in 1,000-unit quantities.

Texas Instruments | www.ti.com

 

Utility Metering Solution Taps Semtech’s LoRa Technology

Semtech has announced that Lemonbeat, an IoT solution provider, has integated Semtech’s LoRa devices and wireless radio frequency technology (LoRa Technology) into its smart metering solutions for easier reading and collection of utility usage. Lemonbeat’s LoRa-connected smart meters work by utilizing embedded LoRa-based IoT technology to connect the meter to their own purpose-built receiver units.

Using this connectivity, meters send data through multiple floors in bigger buildings or all way in to the street, where network operators conveniently collect the data without having to enter the building. Using the meters’ other radio frequency, Lemonbeat Radio, meters provide customers accurate data on their energy consumption. With a third-party application, individuals can view and analyze this data, and change their habits accordingly.

Semtech’s LoRa devices and wireless radio frequency technology is a widely adopted long-range, low-power solution for IoT that gives telecom companies, IoT application makers and system integrators the feature set necessary to deploy low-cost, interoperable IoT networks, gateways, sensors, module products, and IoT services worldwide. IoT networks based on the LoRaWAN specification have been deployed in over 100 countries and Semtech is a founding member of the LoRa Alliance.

Lemonbeat | www.lemonbeat.com

Semtech | www.semtech.com

IoT Module Family Features Ultra-Compact Form Factor

Telit has announced the xE310 family of miniature IoT modules. With initial models planned in LTE-M, NB-IoT and European 2G, the new form factor will enable Telit to meet growing demand for ultra-small, high-performance modules for wearable medical devices, fitness trackers, industrial sensors, smart metering, and other mass-production, massive deployment applications. Telit will start shipping xE310 modules in Q4 this year.
Telit claims the xE310 family is one of the smallest LGA form factors available in the market with a flexible perimeter footprint supporting various sizes from compact to smaller than 200 mm2. The xE310’s 94 pads include spares to provide Telit the flexibility to quickly deliver support for additional features as technologies, applications and markets evolve. Spares can be used for modules supporting Bluetooth, Wi-Fi or enhanced location technologies—in addition to cellular—while maintaining compatibility with cellular only models. They can also be used for additional connections that may be required for new 5G-enabled features.

The new form factor also gives OEMs greater flexibility, efficiency and yield during design and manufacturing. The xE310 family provides easy PCB routing while minimizing manufacturing process issues such as planarity and bending. The unique circular pad facilitates correct package orientation for automated assembly.

To learn more about the new xE310 family, visit the Telit stand 431 at IoT Solutions World Congress in Barcelona, Spain on October 16-18.

For a look at how this new design is enabling smart metering applications, register for the Telit webinar on November 15: “From 2G to 5G: 5 things you need to know for smarter utilities”: https://www.smart-energy.com/industry-sectors/data_analytics/webinar-15-november-5-things-you-need-to-know-for-smarter-utilities/.

Telit | www.telit.com