RECOM Boost R-78S switching regulator

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RECOM’s Boost R-78S switching regulators have been specially designed for single-cell powered IoT applications. Due to their wide input voltage range, high efficiency and low stand-by losses, they extend not only the working lifetime of the cell, but also maintain a stable 3.3 V output for the life of the battery.

Based on the simple plug-and-play concept of the standard R-78 buck regulator, the boost regulator is able to provide a stable 3.3 VDC output from a lower input voltage from 3.15 down to 0.65 V. Applications such as microcontrollers, WLAN/Bluetooth/LoRa modules or IoT systems can now be supplied from a single 1.5 V cell, which, in contrast to conventional 3 V button batteries, is said to offer more power for a longer operational life. The efficiency of the series can reach 93% at full load and maintain at over 90% even under light loading. No load current consumption is 160 μA, reducing to 7 μA when the control pin is used.

The converters are protected against permanent short circuit and over-temperature conditions and have an undervoltage lockout to protect rechargeable cells from deep discharge. They can be operated in the ambient temperature range from -40 up to +100°C and are certified to the new EN62368-1 standard.

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