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The TPS62177 is a high-efficiency synchronous step-down DC-DC converter based on the DCS-Control topology.
With a wide operating input voltage range of 4.75 to 28V, this device is ideally suited for systems powered from multi-cell Li-Ion as well as 12V and even higher intermediate supply rails, providing up to 500mA output current. The TPS62177 automatically enters Power Save Mode at light loads to maintain high efficiency across the whole load range. It features a Sleep Mode to supply applications with advanced power-save modes like ultra-low-power microcontrollers. The Power Good output may be used for power sequencing and/or Power On Reset.
The device features a typical quiescent current of 22µA in normal mode and 4.8uA in Sleep Mode. In Sleep Mode, the efficiency at very low load currents can be increased by as much as 20%. In shutdown mode, the shutdown current is less than 2µA and the output is actively discharged. The TPS62177, available in an adjustable and a fixed output voltage version, is packaged in a small, 2-by-3-mm 10-pin WSON package.
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