R-78K-0.5 switching regulator from RECOM available from Rutronik

Thanks to the high efficiency of the R-78K-0.5 of up to 96%, no heat sink is required and operation under full load is possible at an operating temperature of -40°C to +90°C. The compact TO-220-compatible SIP3 housing is extremely space-saving at only 11.5 x 7.55 x 10.2mm. The R-78K-0.5 series from RECOM is available at Rutronik.

With the new, non-isolated DC/DC switching regulators of the R-78 series, RECOM offers a direct replacement for the lossy standard linear regulators of the LM78 series. Accordingly, the R-78 series with rated currents of 0.5A, 1A, and 2A, high efficiency and compact dimensions quickly became the industry standard. The advanced R-78K version offers a wider input voltage range of up to 36V, better efficiency of up to 96% and more output options down to 1.5VDC. The operating temperature is now up to +90°C without derating. The 0.5A and 1A versions also feature smaller housings and lower weight.

The R-78K-0.5 is an optimal pin-to-pin replacement for an LDO (low drop out): Unlike the K series, an LDO cannot convert voltage, but divides the voltage into the desired output voltage and the unused voltage. The unused voltage generates power loss with the current provided by the output voltage. Thanks to its high efficiency of 96%, the R-78K-0.5 significantly reduces this, which greatly improves the efficiency of the overall application.

Benefits at a glance:

• Smaller housing and lower weight
• Nominal currents of 0.5A, 1A, and 2A
• Output options up to 1.5VDC
• Efficiency up to 96%, no heat sinks required
• Operation at ambient temperatures from -40°C to +90°C without derating
• Pin-compatible with R-78 series regulators
• Undervoltage and short-circuit protection

Application examples:

• (Industrial) IoT & Internet of Everything
• (Industrial I) advanced robotics
• Industry 4.0
• Automation
• Energy
• Biotechnology
• Medical
• Transportation, logistics, and supply