SMT 3-20 A PoL Converters have fully optimized control loops.

Press Release Summary:

Compliant with 2nd Generation DOSA standards, DOSA-2 non-isolated DC/DC converters do not require any external tuning components and feature edge plated castellation pads that facilitate SMT solder joint inspections. There are 4 series - iCF, iCG, iBF, and iAF - with respective output current/power ratings of 3 A/16.5 W, 6 A/33 W, 12 A/66 W, and 20 A/110 W. All operate with 4.5-14 V input and feature adjustable output voltages from 0.7-5.5 V with conversion efficiencies to 97%.

Original Press Release:

TDK-Lambda Announces 2nd Gen DOSA SMT 3A to 20A PoL Converters

No Loop Tuning - Up to 97% Efficient - EPC Pads for Easy Solder Inspection

San Diego, CA - TDK-Lambda Americas, a group company of TDK Corporation, 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 and the 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. For more information, call TDK-Lambda Americas directly at 1-800-526-2324 or download the product datasheet from

About TDK-Lambda
TDK-Lambda Americas, a group company of TDK Corporation, is a leading global elec-tronics company and has been a major provider of power solutions for over 60 years. The company designs and manufactures a wide range of AC-DC and DC-DC power products for Medical, Industrial, Communications and Test & Measurement applications worldwide. For more information, call TDK-Lambda Americas directly at 619-575-4400 or visit the website at:

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