TPS62740DSST

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
• <lt/>31mm² Total Solution
• Green product and no Sb/Br

警告

Device has limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.