TPS61093DSKR Power Path Management IC Switching Voltage Regulators Low In 20V/1.1A Step Up DC/DC Converter

1 Features

• Input range: 1.6 V to 6 V

• Integrated power diode and isolation FET

• 20-V Internal switch FET with 1.1-A current

• Fixed 1.2-MHz switching frequency

• Efficiency at 15-V output up to 88%

• Overload and overvoltage protection

• Programmable soft start-up

• Load discharge path after IC shutdown

• 2.5mm×2.5mm×0.8mmWSONpackage

• Create a custom design using the TPS61093 with the WEBENCH® Power Designer

   

2 Applications

• Glucose meters

• OLED power supplies

• 3.3-V to 12-V, 5-V to 12-V Boost converters

3 Description

The TPS61093 is a 1.2-MHz, fixed-frequency boost converter designed for high integration and high reliability. The IC integrates a 20-V power switch, input/output isolation switch, and power diode. When the output current exceeds the overload limit, the isolation switch of the IC opens up to disconnect the output from the input, thus protecting the IC and the input supply. The isolation switch also disconnects the output from the input during shutdown to minimize leakage current. When the IC is shut down, the output capacitor is discharged to a low voltage level by internal diodes. Other protection features include 1.1-A peak overcurrent protection (OCP) at each cycle, output overvoltage protection (OVP), thermal shutdown, and undervoltage lockout (UVLO).

With its 1.6-V minimum input voltage, the IC can be powered by two alkaline batteries, a single Li-ion battery, or 3.3-V and 5-V regulated supply. The output can be boosted up to 17 V. The TPS61093 is available in 2.5 mm × 2.5 mm VSON package with thermal pad.