TPS62743YFPR

The TPS62743 is a high efficiency step down
converter with ultra low quiescent current of typical
360 nA. The device is optimized to operate with a 2.2-
µH inductor and 10µF output capacitor. The device
uses DCS-Control™ and operates with a typical
switching frequency of 1.2 MHz. In Power Save Mode
the device extends the light load efficiency down to
a load current range of 10-µA and below. TPS62743
provides an output current of 300 mA. Once started
the device operates down to an input voltage range of
2.0 V. This allows to operate the device directly from a
single Li-MnO2 coin cell.
The TPS62743 provides 8 programmable output
voltages between 1.2V and 3.3V selectable by three
selection pins. The TPS62743 is optimized to provide
a low output voltage ripple and low noise using a
small output capacitor. Once the input voltage comes
close to the output voltage the device enters the No
Ripple 100% mode to prevent an increase of output
ripple voltage. In this operation mode the device stops
switching and turns the high side MOSFET switch on.