TDK Lambda Americas Inc
TDK World Wide


Power Supply Products

Wide Input Range 250W DC-DC Converters Provide 3.3V to 24V Output

San Diego, CA – November 2015 –

TDK Corporation announces the introduction of the 250W rated TDK-Lambda i6A series of non-isolated DC-DC converters. Capable of operating from an input voltage of 9V to 40V, the step-down converter delivers an output voltage that can be adjustable from 3.3V to 24V and output currents of up to 14A. The series is designed to be used in a wide range of applications including medical, communications, industrial and test and measurement equipment.

In a 1/16th brick form factor, measuring 33 x 22.9 x 12.7mm, the converters can be used in conjunction with a single output 12V or 24V AC-DC power supply to generate additional regulated high current outputs, with or without battery back-up.

With efficiencies of up to 98%, power losses are minimized allowing the products to operate in harsh ambient temperatures of -40oC to +125oC even with low airflow requirements. The need for external output capacitance is reduced due to an optimized dynamic voltage response, thus reducing board space requirements.

The basic feature models include an output voltage adjustment pin, positive or negative logic remote on-off, remote sense, input under-voltage, over-current and thermal protection. Full feature models are equipped with a power good signal, output voltage sequencing and the ability to synchronize the operating frequency to minimize system noise. All models are certified to UL/CSA 60950-1, IEC/EN 60950-1 and carry the CE mark for the Low Voltage and RoHS2 Directives.

More information can be obtained at the following TDK-Lambda Americas website,, or by calling 800-LAMBDA-4. Product availability for the i6A converters can be found via the link to TDK-Lambda’s distributor network (see “Check Distributor Stock”) at


Major applications

Medical, communications, industrial and test and measurement equipment


Main features and benefits

  • High efficiency (Up to 98%)
  • 9 to 40VDC input, 3.3 to 24V output adjustment
  • Up to 250W or 14A output
  • Basic and full featured versions

Major specifications




Input voltage range


9 to 40V

Output voltage range


3.3 to 24V

Maximum output power


250W (14A maximum output current)



98% (20V output, 24V input, 100% loading)

Optional features


Power good, output sequencing and frequency synchronization

Size (L x W x H)


33 x 22.9 x 12.7


About TDK Corporation

TDK Corporation is a leading electronics company based in Tokyo, Japan. It was established in 1935 to commercialize ferrite, a key material in electronic and magnetic products. TDK's portfolio includes electronic components, modules and systems* which are marketed under the product brands TDK and EPCOS, power supplies, magnetic application products as well as energy devices, flash memory application devices, and others. TDK focuses on demanding markets in the areas of information and communication technology and consumer, automotive and industrial electronics. The company has a network of design and manufacturing locations and sales offices in Asia, Europe, and in North and South America. In fiscal 2015, TDK posted total sales of USD 9.0 billion and employed about 88,000 people worldwide.

* The product portfolio includes ceramic, aluminum electrolytic and film capacitors, ferrites, inductors, high-frequency components such as surface acoustic wave (SAW) filter products and modules, piezo and protection components, and sensors.

About TDK-Lambda

TDK-Lambda Corporation, a group company of TDK Corporation, is a leading global power supply company providing highly reliable power supplies for industrial equipment worldwide. TDK-Lambda Corporation meets the various needs of customers with our entire range of activities, from research and development through to manufacturing, sales, and service with bases in five key areas, covering Japan, Europe, America, China, and Asia.

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Editorial Contact:

Tom Tillman, Director of Marketing
TDK-Lambda Americas Inc.
401 Mile of Cars Way, Suite 325
National City, CA 91950
Ph: 619-575-4400