The TPS62740DSST is an industry's first Step-down Converter features typical 360nA quiescent current and operating with a tiny 2.2μH inductor and 10μF output capacitor. This new DCS-Control? based device extends the light load efficiency range below 10μA load currents. TPS62740DSST supports output currents up to 300mA. The device operates from rechargeable Li-Ion batteries, Li-primary battery chemistries such as Li-SOCl2, Li-MnO2 and two or three cell alkaline batteries. The input voltage range up to 5.5V allows also operation from an USB port and thin-film solar modules. The output voltage is user selectable by four VSEL pins within a range from 1.8V to 3.3V in 100mV steps. TPS62740DSST features low output ripple voltage and low noise with a small output capacitor. Once the battery voltage comes close to the output voltage (close to 100% duty cycle) the device enters no ripple 100% mode operation to prevent an increase of output ripple voltage.
Up to 90% efficiency at 10μA output current
RF friendly DCS-Control?
Low output ripple voltage
16 Selectable output voltages in 100mV steps between 1.8 to 3.3V
Automatic transition to no ripple 100% mode
Slew rate controlled load switch
Discharge function on VOUT/LOAD
Power good output
Optimized for operation with a tiny 2.2μH inductor and 10μF COUT
(EN)
