REC5-4809DRW/H/B/SMD

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DC-DC converters are becoming increasingly popular due to the increased demand for reliable, efficient, and compact power solutions. The REC5-4809DRW/H/B/SMD is one such device, designed to convert a lower DC voltage to a higher one. This application note will provide an introduction to the REC5-4809DRW/H/B/SMD, describing its application field and working principle.

The REC5-4809DRW/H/B/SMD is designed to provide a regulated DC to DC output voltage from an input of between 4.8 V and 9 V. The output voltage can be adjusted in the range of 4.8 to 9 V in 100 mV increments, with a maximum output power of 18 W. The device includes over-voltage protection and short-circuit protection, and is capable of operating at temperatures from -40 °C to 105°C.

The REC5-4809DRW/H/B/SMD is suitable for use in a wide range of battery-powered applications including portable communication devices, entertainment electronics, medical instruments, automotive electronic systems, and industrial systems. The device can also be used to power embedded applications requiring a regulated power supply.

The REC5-4809DRW/H/B/SMD operates on a switching principle to convert the input voltage to the desired output voltage. It consists of a step-down DC/DC converter and an integrated switching regulator. The DC/DC converter converts the input voltage to a suitable intermediate voltage, while the switching regulator steps the voltage up to the required output voltage. The switching frequencies of the device are programmable in the range of 200 kHz–1MHz, allowing designers to optimize efficiency and performance.

The REC5-4809DRW/H/B/SMD is a high efficiency DC-DC converter, offering typical efficiency of 85%. Ten operation modes are available, including battery-charger and linear charger mode, and it is also compatible with buck-boost converters. The device incorporates an adjustable soft-start function, thermal shutdown protection, current-limit protection, and load dump protection.

In conclusion, the REC5-4809DRW/H/B/SMD is a versatile DC-DC converter designed to convert a lower DC voltage to a higher one. It offers high efficiency, over-voltage protection, and short-circuit protection, and is suitable for use in battery-powered applications such as portable communication devices, entertainment electronics, medical instruments, automotive electronic systems, and embedded applications. The device operates on a switching principle, converting the input voltage to a suitable intermediate voltage before stepping the voltage up to the desired output voltage.

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