Single Cell Battery Boost Switching Regulator
RECOM’s R-78S series is a revolutionary, first-of-its-kind, boost switching regulator, which has been specially designed for single-cell powered IoT applications.
Due to its wide input voltage range down to 0.65V, high efficiency and low stand-by losses, the R78S not only boosts the output voltage of a single cell, but also maintains a stable, regulated output down to the last gasp of the battery voltage. Based on the simple plug-and-play concept of the standard R-78 buck regulator, the R-78S boost regulator is able to provide a stable 1.8, 3.3 or 3.6VDC output from any standard 1.5V battery cell or lower voltage energy harvester output. Battery-powered applications such as microcontrollers, WLAN / Bluetooth / LoRa modules or IoT systems can now be supplied from a single high-capacity battery cell, which in contrast to conventional 3V button cells, offers considerably more power for a longer operational life. A MEMS vibration generator output can be boosted up to a useful output vol tage. The efficiency of the R-78S series can reach 93% at full load, maintained at over 90% even under light loading. An enable pin puts the converter into very low power standby mode.
Due to its wide input voltage range down to 0.65V, high efficiency and low stand-by losses, the R78S not only boosts the output voltage of a single cell, but also maintains a stable, regulated output down to the last gasp of the battery voltage. Based on the simple plug-and-play concept of the standard R-78 buck regulator, the R-78S boost regulator is able to provide a stable 1.8, 3.3 or 3.6VDC output from any standard 1.5V battery cell or lower voltage energy harvester output. Battery-powered applications such as microcontrollers, WLAN / Bluetooth / LoRa modules or IoT systems can now be supplied from a single high-capacity battery cell, which in contrast to conventional 3V button cells, offers considerably more power for a longer operational life. A MEMS vibration generator output can be boosted up to a useful output vol tage. The efficiency of the R-78S series can reach 93% at full load, maintained at over 90% even under light loading. An enable pin puts the converter into very low power standby mode.
Main features:
- Boost converter (1.8, 3.3 or 3.6V from a single 1.5V cell)
- Efficiency: 93% , >80% with 10% load
- Input range down to 0.65V
- Continuous SCP
- Standby input current: 7µA
- Operating temperature range from -40°C up to +100°C
- IEC/EN62368-1 certified with CB Report
Applications:
- Single-cell powered IoT applications
- Energy harvesting
- WLAN/Bluetooth/LoRaWAN modules
