TDK-Lambda News

The Tarka range is a new generation of non-isolated DC-DC converters from leading global power solutions provider Lambda. The first model to be unveiled is the PL10, a 5V input, 10A output single-in-line packaged unit. Unmatched transient response and tight line/load regulation put it way out in front of its competitors. Aimed at ‘point-of-load’ applications, the new converter has a user-selectable output voltage range of 0.9 to 3.3V. Fixed by a single resistor, the choice of output voltage on one model offers designers total flexibility in a market of rapidly changing processor voltages. It makes them ideally suited to the latest generation of microcontroller and DSP devices.

“Due to such low voltages used by micros today engineers really cannot afford sudden voltage transients within a design,” said Edward Wright, DC-DC Product Manager. “Transient response is a key factor when choosing a POL converter. The PL10 has a transient output voltage deviation of less than 90mV for a 50% load change with a settling time of just 60 microseconds with no external capacitors.”

When designing DC-DC converters setting the switching frequency creates a trade off between desired efficiency and undesired ripple voltage. Using synchronous rectifier technology Lambda has optimised the switching frequency at 300kHz, delivering efficiencies of up to 96% and ripple voltages as low as 16mV pk-pk.

The Tarka range offers designers built-in current limit and short-circuit protection, as well as over temperature protection. Input logic shutdown is also provided.

“The Tarka range’s technical advantages combined with its local UK manufacture, put it head and shoulders above competing point-of-load products,” added Wright. “Making the new units at Lambda’s world-class Ilfracombe plant means that we can guarantee European customers rapid delivery and low MOQs, essential to today’s OEMs.”