TI Announces TPS4009x Family of DC/DC Controllers

Texas Instruments Inc. (TI, Dallas, TX) announced its new multi-phase, synchronous dc/dc buck controllers that support 40A to 120A. The new pulse-width modulation (PWM), single-chip controllers provide control and supervisory features for low-voltage, high-current, point-of-load, power supply designs.

The TPS4009x family of programmable controllers manage two-phase, three-phase or four-phase, and offer several advantages over a single power stage, including lower current ripple on the input and output capacitors, faster transient response to load steps, and improved power handling capabilities at greater than 90% power efficiency. The TPS4009x devices can operate each phase at a switching frequency of up to 1MHz, resulting in effective ripple frequency of up to 4MHz at the input and output in a four-phase application.

The TPS4009x dc/dc controllers are available in volume, packaged in a 24-pin TSSOP. Pricing is $1.79 each in quantities of 1,000. Evaluation modules are available.