Low-voltage start-up for single-cell battery rails
The TPS61291DRVT is a synchronous boost converter that starts from an input as low as 0.9 V and delivers a programmable output of 2.5 V, 3 V, or 3.3 V. The 700 mA internal switch handles loads typical for sensor nodes, Bluetooth modules, and small MCU rails without an external FET.
700 mA switch current and synchronous rectification
With a 700 mA switch and integrated synchronous rectifier, the TPS61291DRVT avoids the efficiency penalty of an external Schottky diode. The 0.9 V minimum input means a single alkaline cell at 1.0 V still regulates — useful for battery-powered gear that must run until the cell is nearly flat.
Active production in a compact 6-WSON package
The 6-WSON (2x2 mm) package with exposed pad helps pull heat into the PCB copper.
Industrial temperature range and board fit
No automotive qualification is listed, so keep it out of under-hood designs.