TPS62080EVM-641: 2.5V @ 1.2A, 2.3 ~ 6V in

The TPS6208x synchronous switched mode converters are based on DCS™ Control (Direct Control with Seamless transition into Power Save Mode). This is an advanced regulation topology that combines the advantages of hysteretic and voltage mode control.

The DCS™ Control topology operates in PWM (Pulse Width Modulation) mode for medium to heavy load conditions and in Power Save Mode at light load currents. In PWM the converter operates with its nominal switching frequency of 2MHz having a controlled frequency variation over the input voltage range. As the load current decreases the converter enters Power Save Mode, reducing the switching frequency and minimizing the IC quiescent current to achieve high efficiency over the entire load current range.

DCS™ Control supports both operation modes (PWM and PFM) using a single building block having a seamless transition from PWM to Power Save Mode without effects on the output voltage. Fixed output voltage versions provide smallest solution size combined with lowest quiescent current. The TPS6208x offers both excellent DC voltage and superior load transient regulation, combined with very low output voltage ripple, minimizing interference with RF circuits.

The device is equipped with the Snooze Mode functionality, which is enabled with the Mode pin. The Snooze Mode supports high efficiency conversion at lowest output currents below 2mA. If no load current is drawn, the ultra low quiescent current of 6.5uA is sufficient to maintain the output voltage. This extends battery run time by reducing the quiescent current during lowest or no load conditions in battery driven applications. For mains- operated voltage supplies, the Snooze Mode reduces the system's stand-by energy consumption. During shutdown (EN = LOW), the device reduces energy consumption to less than 1uA.