Power Electronics

2nd Gen DOSA SMT 3A to 20A PoL Converters

TDK-Lambda Americas has announced their new family of non-isolated SMT DC-DC converters that comply with the latest 2nd Generation DOSA standards for Point-of-Load (PoL) Converters.

Key advantages of the new DOSA-2 models include high power densities; no external tuning components (plug & play), low profiles, high efficiencies, and Edge Plated Castellation (EPC) pads for easy SMT solder joint inspections. These converters are ideal for harsh telecom/broadcast mast-mounted applications, as well as industrial, test & measurement, and medical equipment.

TDK-Lambda's DOSA-2 product line is comprised of four series with output current/power ratings as follows:

  • iCF: 3A/16.5W
  • iCG: 6A/33W
  • iBF: 12A/66W
  • iAF: 20A/110W

All of these operate with a wide input voltage range of 4.5V to 14V and feature adjustable output voltages from 0.7V to 5.5V with conversion efficiencies up to 97%. These miniature 2nd Generation DOSA modules range in size from 12.2 x 12.2 x 4.45 mm (less than 0.5 square inch) to 33 x 13.46 x 7.75 mm. Optional LGA (Land Grid Array) SMT solder pads are available instead of the standard EPC pads.

Featuring fully-optimized control loops, all modules provide excellent transient response without external loop-tuning components (as is the case with some competitive products). Remote On/Off, Remote Sense and Power Good Signal are standard. Units can operate in ambient temperatures from -40°C up to +115°C and include a 3-year warranty.

These converters operate at a constant switching frequency of 600 kHz, which provides a low noise profile and facilitates easy EMI filtering. All models are safety certified to UL/CSA60950-1 and VDE CB scheme per IEC/EN60950-1.

These DOSA-2 converters are available now and priced from $6.17 each in reel quantities.

TDK-Lambda
Part Number: iCF/iCG/iBF

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