Lambda Unveils PAH200H Series Power Modules

Lambda (San Diego, CA) introduced its new high-current, high-efficiency PAH200H Series power modules, which provide up to 70A in the industry-standard half-brick footprint measuring 2.4in x 2.28in x 0.4in. The new dc/dc converters claim a power density of over 105W/in³, and address the requirements of distributed power applications offering three output-voltage choices from 1.8V to 3.3V. The new modules are available with efficiencies of up to 90 percent for a 3.3V output unit.

The PAH200H Series operates from a nominal 48V input, provides a fully regulated output at power levels up to 198W, and accepts a wide-range dc input of 36Vdc to 75VDC with a peak of 100V for 100ms. The PAH200H Series offers nominal single-output voltages of 1.8V, 2.5V and 3.3V. All modules come with a voltage-adjustment feature as standard, capable of adjusting the output +10 to –20 percent on the 1.8V and 2.5V models, and +15 percent for the 3.3V models.

Standard features include remote sense, over-voltage and over-current protection, thermal shutdown, output-voltage adjustment, remote on/off, and 1,500Vac isolation. The operating temperature is –40 to +85 degrees C without a baseplate, and up to 100 degrees C with a baseplate. The modules can be convection or forced-air cooled. All models are approved to UL1950, CSA22.2 NO. 950-95 and EN60950, and carry the CE mark.

Pricing starts at $142 in 100-piece quantities. All models are available from stock to 12 weeks.