R78T Series Switching Regulators

New SMD Switching Regulator Series Offers Upgraded Replacement for TI Power Trends Modules

This new line will help customers avoid costly re-designs of equipment using Power Trends switching regulators

Recently, RECOM introduced new compact, low-profile SMD Switching Regulators, based on the well-established Innoline R78-family. The new R-78T series are pin compatible with many Texas Instrument Powertrend series, such as the PT5100, PT78ST100, and 78SR100 series. There are standard pinning options including EAC (/AC), EAL (AL) or EFC (FC).

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 10mm or 23 x 29.4 x 8mm. 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.

FeaturesApplications
  • Efficiency up to 95%, no need for heatsinks!
  • Industry Standard Pin-out
  • 1.5A Start-Up Overload Capacity
  • Wide Input Range (7V-42V)
  • Operating Temperature Range -40°C up to 85°C
  • Short Circuit Protection
  • Fixed Switching Frequency (350kHz), Shielded Magnetics
  • Low profile
  • Low cost
  • Embedded Designs
  • Point of Load
  • Distributed Supply Systems
  • Battery Operated Systems
  • Controllers and Sensors
  • Positioning Systems
  • Robotics
  • Medical
  • Telecommunications
  • Measurement Equipment
  • Fan Controllers

Available in three standard footprints:

EAC Footprint

EFC Footprint

EAL Footprint

Standoffs for added stability

Isolated pins for additional stability and thermal management

Isolated pins & standoffs for maximum stability and thermal management

Digi-Key P/N Manufacturer P/N Description Buy Now
945-2153-ND R-78T3.3-1.0/AC-TRAY DC/DC CONVERTER 3.3V
945-2154-ND R-78T3.3-1.0/AL-TRAY DC/DC CONVERTER 3.3V 3W
945-2155-ND R-78T5.0-1.0/AL-TRAY DC/DC CONVERTER 5V 5W
945-2156-ND R-78T12-1.0/AL-TRAY DC/DC CONVERTER 12V 12W
945-2157-ND R-78T12-1.0/FC-TRAY DC/DC CONVERTER 12V 12W
945-2158-1-ND R-78T3.3-1.0/FC-R DC/DC CONVERTER 3.3V 3W
945-2159-1-ND R-78T12-1.0/AC-R DC/DC CONVERTER 12V 12W
945-2160-1-ND R-78T5.0-1.0/AC-R DC/DC CONVERTER 5V 5W
945-2161-1-ND R-78T5.0-1.0/FC-R DC/DC CONVERTER 5V 5W

Product Training Module

R-78 Series:
Modular Switching Regulators

The advantages of modular Switching Regulators in comparison to linear regulators

Resources

Application Notes Selection Guide