R-78 Series

Our R-78 series is the original non-isolated, high-efficiency switching regulator, designed as a pin compatible drop- in replacement for LM78 linear regulators - no heatsink required! RECOM's R-78 series switching regulator modules offer all the advantages of a switching regulator - high efficiency, wide input voltage range, accurate output voltage regulation - with a low cost for production quantities. The R-78 series offers a risk-free, pre-tested solution that makes designing a switching regulator circuit redundant. The R-78 series meets all of the most commonly requested specifications yet makes no compromise when it comes to quality and reliability as it is guaranteed with a full 3-Year warranty from RECOM.

Features

  • Step-Down Regulators with up to 97% Efficiency
  • Ambient Temperature Range -40°C to +85°C
  • MTBF up to 3.0 Million Hours
  • Ultra-High Specifications
  • High Efficiency - No Heatsink Required
  • RoHS and Reach Compliant
  • Built-in EN-55022
  • FCC Class B Filter
  • 3-Year Warranty

Applications

  • Drop-in Replacement for LM78xx
  • Point-of-Load
  • Distributed Supply Systems
  • Battery Operated Systems
  • Controllers and Sensors
  • Positioning Systems
  • Robotics
  • Telecommunications
  • Measurement Equipment
  • R-78xx
  • R-78AAxx-SMD
  • R-78B
  • R-78C
  • R-78E
  • R-78HB
  • R-78S
  • R-78T
  • ROF-78
  • R-78 Evaluation Boards

R-78xx Modular Switching Regulator

R-78xx Modular Switching Regulator

The R-78xx-0.5 Series high efficiency switching regulators are ideally suited to replace 78xx linear regulators and are pin compatible. The efficiency of up to 97% means that very little energy is wasted as heat so there is no need for any heatsinks with their additional space and mounting costs. Low ripple and noise figures and short circuit, overload and over temperature protection round off the specifications of this versatile converter series. This R-78xx-0.5 is fully certified to EN 60601-1-2, EN 55022 (Emissions), and EN55024 (Immunity) EMC Standards and for EN-60950-1 Safety.

 

Features

  • Very high efficiency: up to 96%
  • Low profile case: 11.6 x 10.4 x 8.5 mm
  • Continuous output current: 1 A
  • Low standby current: 1 mA
  • Ultra wide input voltage range: 5 to 42 Vin
  • Operating temperature range: -40°C to +85°C
  • SIP3 package compatible to TO-220 footprint

Applications

  • Drop in Replacement for LM78xx
  • Point of Load
  • Distributed Supply Systems
  • Battery Operated Systems
  • Controllers and Sensors
  • Positioning Systems
Part Number Description  
R-781.8-0.5 CONV DC/DC 0.5A 1.8V OUT SIP VERT View Details
R-7812-0.5 CONV DC/DC 0.5A 12VOUT SIP VERT View Details
R-7815-0.5 CONV DC/DC 0.5A 15V OUT SIP VERT View Details
R-783.3-0.5 CONV DC/DC 0.5A 3.3V OUT SIP VERT View Details
R-785.0-0.5 CONV DC/DC 0.5A 5V OUT SIP VERT View Details
R-786.5-0.5 CONV DC/DC 0.5A 6.5V OUT SIP VERT View Details
R-789.0-0.5 CONV DC/DC 0.5A 9V OUT SIP VERT View Details

R-78AAxx-SMD Modular Switching Regulator

R-78AAxx-SMD Modular Switching Regulator

The R-78AAxx-SMD series are manufactured without lead and meet the requirements for RoHS 6/6 as well as the increased reflow soldering temperatures associated with vapor phase soldering, making these high efficiency switching regulators ideally suited to modern pick-and-place mass production. The efficiency of up to 97% means that very little energy is wasted as heat. The additional features of remote on/off control and adjustable output voltages will find many uses in the battery-powered, industrial, and automotive markets.

 

Features

  • Efficiency up to 97%, Non isolated, no need for heatsinks
  • RoHS 6/6 Conform (100% Lead Free)
  • High Reflow Temperature SMD Package
  • Adjustable Output Voltage
  • Wide input range (4.75V ~ 32V)
  • Short circuit protection, Thermal shutdown
  • Remote On/Off Control
  • UL94V-0 Package Material
  • Very Low Shutdown Current
  • See Application Notes for use as an inverter (alternative to LM79xx Linear)
  • 3 year warranty

Applications

  • Drop in Replacement for LM78xx
  • Point of Load
  • Distributed Supply Systems
  • Battery Operated Systems
  • Controllers and Sensors
  • Positioning Systems
  • Industrial
  • Automotive
Part Number Description  
R-78AA12-0.5SMD-R CONV DC/DC 0.5A 12V OUT SMD View Details
R-78AA3.3-0.5SMD-R CONV DC/DC 0.5A 3.3V OUT SMD View Details
R-78AA5.0-0.5SMD-R CONV DC/DC 0.5A 5V OUT SMD View Details
R-78AA6.5-0.5SMD CONV DC/DC 0.5A 8-32VIN 6.5V View Details
R-78AA3.3-1.0SMD CONV DC/DC 1A 4.75-18VIN 3.3V View Details
R-78AA5.0-1.0SMD-R CONV DC/DC 1A 5V OUT SMD View Details

R-78B Modular Switching Regulator

R-78B Modular Switching Regulator

The R-78B series high efficiency switching regulators are ideally suited to replace 78xx linear regulators and are pin compatible. The efficiency of up to 97% means that very little energy is wasted as heat so there is no need for any heatsinks with their additional space and mounting costs. Low ripple and noise figures and short circuit input current of typically only 10mA, overload and over temperature protection round off the specifications of this versatile converter series. This R-78B is fully certified to EN 60601-1-2, EN 55022 (Emissions), and EN55024 (Immunity) EMC Standards and for EN-60950-1 Safety. The L-Version with 90° pins allows direct replacement for laid-flat regulators where component height is at a premium.

 

Features

  • Efficiency up to 97%, Non isolated, no need for heatsinks
  • Pin-out compatible with LM78XX linear regulators
  • Low profile ( L*W*H=11.5*8.5*17.5mm)
  • Wide input range (4.75V ~ 34V)
  • Short circuit protection, thermal shutdown
  • Non standard outputs available as special order between 1.5V ~15V
  • Low ripple and noise
  • “L” version with 90° pins
  • See Application Notes for use as an inverter (alternative to LM79xx Linear)
  • 3 year warranty

Applications

  • Drop in Replacement for LM78xx
  • Point of Load
  • Distributed Supply Systems
  • Battery Operated Systems
  • Controllers and Sensors
  • Positioning Systems
Part Number Description  
R-78B1.8-1.0 CONV DC/DC 1A 1.8V OUT SIP VERT View Details
R-78B5.0-1.0 CONV DC/DC 1A 5V OUT SIP VERT View Details
R-78B5.0-1.0L CONV DC/DC 1A 5V OUT SIP View Details
R-78B6.5-1.0 CONV DC/DC 1A 6.5V OUT SIP VERT View Details
R-78B9.0-1.0 CONV DC/DC 1A 12-34VIN 9VOUT View Details
R-78B9.0-1.0L CONV DC/DC 1A 12-32VIN 9V View Details
R-78B12-1.0 CONV DC/DC 1A 12V OUT SIP VERT View Details
R-78B12-1.0L CONV DC/DC 1A 12V OUT SIP View Details
R-78B15-1.0 CONV DC/DC 1A 15V OUT SIP VERT View Details
R-78B15-1.0L CONV DC/DC 1A 20-32VIN 15V View Details
R-78B3.3-1.0 CONV DC/DC 1A 3.3V OUT SIP VERT View Details
R-78B3.3-1.0L CONV DC/DC 1A 3.3V OUT SIP View Details
R-78B3.3-1.5 CONV DC/DC 1.5A 3.3VOUT SIP VERT View Details
R-78B3.3-1.5L CONV DC/DC 1.5A 4.75-18VIN 3.3V View Details
R-78B5.0-1.5 CONV DC/DC 1.5A 5V OUT SIP VERT View Details
R-78B5.0-1.5L CONV DC/DC 1.5A 6.5-18VIN 5V View Details

R-78C Series Switching Regulators

R-78C Series Switching Regulators

RECOM has significantly improved the existing features of the standard R-78 series with a much higher input voltage range of up to 42 VDC and double the output power in the same size case. The R-78C series offers 15 W/cm³ of power. Although the R-78C has the highest efficiency of 96% when the input/output voltage variance is only a few volts, it still can achieve 90% efficiency even with an input voltage of 30 V higher than the output voltage. The R-78C can deliver high efficiency over the entire input voltage range and with a nearly constant efficiency when the load varies between 20% and 100%.

 

Features

  • Very high efficiency: up to 96%
  • Low profile case: 11.6 x 10.4 x 8.5 mm
  • Continuous output current: 1 A
  • Low standby current: 1 mA
  • Ultra wide input voltage range: 5 to 42 Vin
  • Operating temperature range: -40°C to +85°C
  • SIP3 package compatible to TO-220 footprint

Applications

  • Industrial
  • Medium and large volume applications
  • Battery powered devices
  • 24 V Bus powered devices
Part Number Description  
R-78C1.8-1.0 CONV DC/DC 1A 1.8V OUT SIP VERT View Details
R-78C12-1.0 CONV DC/DC 1A 12V OUT SIP VERT View Details
R-78C15-1.0 CONV DC/DC 1A 15V OUT SIP VERT View Details
R-78C3.3-1.0 CONV DC/DC 1A 3.3V OUT SIP VERT View Details
R-78C5.0-1.0 CONV DC/DC 1A 5V OUT SIP VERT View Details
R-78C9.0-1.0 CONV DC/DC 1A 9V OUT SIP VERT View Details

R-78E Switching Regulator Module

R-78E Switching Regulator Module

R-78E switching regulator module now offers all the advantages of a switching regulator (high efficiency, wide input voltage range, accurate output voltage regulation) with a low cost for production quantities. The R-78E offers a risk-free, pre-tested solution that makes designing a switching regulator circuit redundant. The R-78E meets all of the most commonly requested specifications yet makes no compromise when it comes to quality and reliability as it is guaranteed with a full 3 year warranty from RECOM.

The input voltage covers the 7 VDC to 28 VDC range, allowing operation from both an industrial 24 V bus or from either a 9 V or 12 V battery. The converter is fully protected against overload, short circuit, and over-temperature conditions. Due to the R-78E’s high efficiency and output voltage, no heatsink is required no heatsink is required for operation over the full industrial temperature range of -40°C to +85°C (+70°C without derating). The compact SIP3 package, TO-220 compatible, measures only 11.6 x 8.5 x 10.4 mm saving precious board space.

 

Features

  • Efficiency up to 95%
  • -40°C to +85°C Operating Temperature
  • Low cost switching regulator
  • Short circuit protection

Applications

  • Industrial
  • Medium and large volume applications
  • Battery powered devices
  • 24 V Bus powered devices
Part Number Description  
R-78E5.0-1.0 DC/DC CONVERTER 5V 5W View Details
R-78E5.0-0.5 CONV DC/DC 5V 500MA OUT THRU View Details
R-78E3.3-1.0 CONV DC/DC 1A 7-28VIN 3.3VOUT View Details
R-78E3.3-0.5 DC/DC CONVERTER 3.3V 500MA THRU View Details
R-78E9.0-0.5 CONV DC/DC 0.5A 12-28VIN 9.0VOUT View Details
R-78E12-0.5 CONV DC/DC 0.5A 15-28VIN 12VOUT View Details
R-78E15-0.5 CONV DC/DC 0.5A 18-28VIN 15VOUT View Details

R-78HB Series Switching Regulators

R-78HB Series

The R-78HB Series switching regulators have high efficiency and high input voltage, which are ideally suited to replace 78xx linear regulators. The efficiency is up to 93%; very little energy is wasted as heat so there is no need for any heat-sinks with their additional space and mounting costs. An input voltage range of up to 8:1 is unsurpassed by any other converters and allows the full stored energy utilization of standard and high voltage batteries. Low ripple, noise figures and a short circuit input current of typically only 15 mA round off the specifications of this versatile converter series. Typical applications include telecommunication, industrial, and battery-powered systems.

 

Features

  • 5 V and 12 V Output Voltages
  • High input voltage range, up to 48 V
  • Efficiency up to 96%
  • No heat-sinking required

Applications

  • Telecommunication
  • Battery-Powered Systems
  • E-Bikes/Boat/Caravans/Recreational Vehicles
  • Remote Measurement Systems
  • Weather Stations
  • Off-Grid Lighting/Power Supplies
  • DIY Electronics
Part Number Description  
R-78HB5.0-0.5/W CONV DC/DC 0.5A 9-48VIN 5.0VOUT View Details
R-78HB12-0.5/W CONV DC/DC 0.5A 17-48VIN 12VOUT View Details
R-78HB12-0.5 CONV DC/DC 0.5A 12V OUT SIP VERT View Details
R-78HB15-0.5 CONV DC/DC 0.5A 15V OUT SIP VERT View Details
R-78HB15-0.5L CONV DC/DC 0.5A 20-72VIN 15V View Details
R-78HB3.3-0.5 CONV DC/DC .5A 3.3V OUT SIP VERT View Details
R-78HB5.0-0.5 CONV DC/DC 0.5A 5V OUT SIP VERT View Details
R-78HB5.0-0.5L CONV DC/DC 0.5A 9-72VIN 5V View Details
R-78HB6.5-0.5 CONV DC/DC .5A 6.5V OUT SIP VERT View Details
R-78HB9.0-0.5 CONV DC/DC 0.5A 9V OUT SIP VERT View Details

R-78S Series Single Output Switching Regulator

R-78S Series

The R-78S is a DC/DC boost converter designed to run from single cell batteries. The input voltage range of 0.65 V-3.15 V means that alkaline, NiCd, NiMH, zinc-carbon or lithium chemistry cells can be used to generate a stable 3.3 V output to power microprocessors, WLAN/Bluetooth modules and IoT systems. The very high efficiency and low standby consumption can be used to extend battery lifetimes until the "last gasp" to get the maximum available energy out of the cell.

 

Features

  • Boost Converter
  • Efficiency 93%, >80% with 10% Load
  • Input Range Down to 0.65 V
  • Continuous Short-Circuit Protection
  • 7 µA Input Current in Standby
  • -40°C to +100°C Operation
  • EN62368-1 + AM2 (pending)

Applications

  • Microcontrollers
  • WLAN / Bluetooth / LoRa modules
  • IoT Systems
Part Number Description  
R-78S3.3-0.1 DC/DC CONVERTER 3.3V View Details
R-78S1.8-0.1 DC DC CONVERTER 1.8V 0.1A View Details
R-78S3.6-0.1 DC DC CONVERTER 3.6V 0.1A View Details

R-78T Series Switching Regulators

R-78T Series Switching Regulators

The new R-78T series provides optional regulated 3.3 V, 5 V, or 12 V at 1 A in continuous operation, but can also handle peak currents up to 1.5 A for 10s. Due to their high efficiency of up to 95%, the modules do not require fans or heatsinks. They can operate reliably at temperatures between -40°C and +85°C without derating. With a wide input voltage range of 7 V to 42 V and no heatsinks, these modules are a space-saving solution for portable or battery-operated applications.

The modules measure only 23 x 27.2 x 10 mm or 23 x 29.4 x 8 mm. They are packaged for fully automatic assembly with "tape & reel" or "tray" options, and are designed for the reflow soldering process. The warranty period is 3 years.

 

Features

  • Efficiency up to 95%, no need for heatsinks
  • Industry Standard Pin-out
  • 1.5 A Start-Up Overload Capacity
  • Wide Input Range (7 V-42 V)
  • Operating Temperature Range -40°C up to 85°C
  • Short Circuit Protection
  • Fixed Switching Frequency (350 kHz), Shielded Magnetics
  • Low profile
  • Low cost

Applications

  • Embedded Designs
  • Point-of-Load
  • Distributed Supply Systems
  • Battery-Operated Systems
  • Controllers and Sensors
  • Positioning Systems
  • Robotics
  • Telecommunications
  • Measurement Equipment
  • Fan Controllers
Part Number Description  
R-78T3.3-1.0/AC-TRAY DC/DC CONVERTER 3.3V View Details
R-78T3.3-1.0/AL-TRAY DC/DC CONVERTER 3.3V 3W View Details
R-78T5.0-1.0/AL-TRAY DC/DC CONVERTER 5V 5W View Details
R-78T12-1.0/AL-TRAY DC/DC CONVERTER 12V 12W View Details
R-78T12-1.0/FC-TRAY DC/DC CONVERTER 12V 12W View Details
R-78T3.3-1.0/FC-R DC/DC CONVERTER 3.3V 3W View Details
R-78T12-1.0/AC-R DC/DC CONVERTER 12V 12W View Details
R-78T5.0-1.0/AC-R DC/DC CONVERTER 5V 5W View Details
R-78T5.0-1.0/FC-R DC/DC CONVERTER 5V 5W View Details

ROF-78 Modular Switching Regulator

ROF-78 Modular Switching Regulator

The ROF-78 high efficiency switching regulators are ideally suited to replace SMD linear regulators. The efficiency of up to 95% means that very little energy is wasted as heat so full power operation over the full industrial ambient temperature range of -40°C to +85°C is possible. Low ripple and noise figures and short circuit, overload and over-temperature protection round off the specifications of this versatile converter series. This ROF-78xx-0.5SMD is compliant to EN 55022 CISPR 22 Class B (Emissions) with a simple external filter, EN 61000-6-1 and EN 61000-6-2 Crit A (Radiated Susceptibility), EN 61000-4-2 Crit B (Electrostatic Discharge 4kV).

 

Features

  • Efficiency up to 95%, Non isolated, very low profile 4mm
  • Wide input range (4.75V ~ 36V)
  • Short circuit protection, thermal shutdown
  • Non standard outputs available as special order
  • Low ripple and noise
  • EMC Compliant
  • See Application Notes for use as an inverter (alternative to LM79xx Linear)
  • 3 year warranty

Applications

  • Drop in Replacement for LM78xx
  • Point of Load
  • Distributed Supply Systems
  • Battery Operated Systems
  • Controllers and Sensors
  • Positioning Systems
Part Number Description  
ROF-78E5.0-0.5SMD-R DC DC CONVERTER 5V 500MA View Details
ROF-78E3.3-0.5SMD-R DC DC CONVERTER 3.3V 500MA View Details

R-78 Evaluation Boards

R-78S3.3-0.1-EVM-1

The R-78S3.3-0.1-EVM-1 Evaluation Module generates 3.3V from a single AA battery or from an external source. By using the external input source, any voltage source (other types of batteries, energy harvesters, etc.) in the range from 0.65V to 3.15V can be used. The evaluation module contains a AA battery holder, power switch, R-78S3.3-0.1 boost converter and a micro-USB connector. Jumper headers are provided to allow various test measurements to be made. An enable pin puts the R-78S into sleep mode where it draws only 7uA from the battery.

 

Features

  • 3.3 V from a single AA battery or from an external source (boost converter)
  • Efficiency 93%, >80% at 10% load
  • Input voltage range down to 0.65 V
  • Input and output power measurement capability
  • Micro USB Type B or 0.100” (2.54 mm) pin output
  • Reference design board R-REF02-78S is a ready-to-use design

Applications

  • Energy harvesting
  • Sensors
  • “Hand-in-hand” IoT
  • Smart home/smart office
Part Number Description  
R-78S3.3-0.1-EVM-1 R-78S3.3-0.1 EVALUATION MODULE View Details
R-78S3.3-0.1-EVM-1/SBL-1 ACCESSORY FOR R-78S3.3-0.1-EVM-1 View Details
R-REF02-78S R-REF02-78S REFERENCE DESIGN View Details