500W step-down DC/DC buck converters are packaged in 1/16 brick pinout
Packaged in a compact 1/16th brick footprint, the TDK-Lambda i7A series of 33A 500W rated non-isolated DC/DC converters have an output adjustment of 3.3V to 24V.
The output voltage can accept a wide range input voltage of 18 to 60V.
The i7A 33A series can be used to derive additional high-power outputs from a 24V, 36V or 48V DC power supply, at a much lower cost than isolated DC/DC converters, says TDK-Lambda. The compact products are suitable for use in medical, communications, industrial, test and measurement, broadcast and portable battery-powered equipment.
Efficiencies of up to 98 per cent minimise internal losses and allow the DC/DC converters to operate in ambient temperatures of -40 to +125 degrees C, even with low air flow conditions. The design provides low output ripple and excellent response to dynamic loads. Very few external components are required, compared to discrete solutions, saving cost and PCB space.
Three mechanical configurations are available, all measuring 34 x 36.8 x 11.5mm. The open-frame model is suitable for low profile applications. The baseplate version for conduction cooling to a cold plate is 12.7mm high. The third option has an integral heatsink, which are for convection or forced air cooling, and is 24.9mm high.
Standard features for the i7A series include an output voltage adjustment trim pin, remote sense, remote on-off (positive or negative logic), input under-voltage, over-current and over-temperature protection.
All models have safety certification to the IEC/UL/CSA/EN 62368-1 standards, with CE marking to the Low Voltage and RoHS Directives.
TDK is an electronics company based in Tokyo, Japan. It was established in 1935 to commercialise ferrite, a key material in electronic and magnetic products. TDK’s portfolio features passive components such as ceramic, aluminium electrolytic and film capacitors, as well as magnetics, high-frequency, and piezo and protection devices. The product spectrum also includes sensors and sensor systems such as temperature and pressure, magnetic, and MEMS sensors. TDK also provides power supplies and energy devices and magnetic heads. Products are marketed under the product brands TDK, EPCOS, InvenSense, Micronas, Tronics and TDK-Lambda. TDK focuses on demanding markets in the areas of information and communication technology and automotive, industrial and consumer electronics. The company has a network of design and manufacturing locations and sales offices in Asia, Europe, and in North and South America.
TDK-Lambda provides power supplies for industrial equipment worldwide. TDK-Lambda meets customers’ needs from research and development through to manufacturing, sales, and service with bases in five key areas, covering Japan, Europe, America, China, and Asia.
