TPS61280 Low Wide Voltage Battery Front End DC / DC Converter The TPS61280 used as a high-power pre-regulator extends the battery run-time and overcomes input current- and voltage limitations of the powered system. provides a power supply solution for products powered by either a Li-Ion, Nickel-Rich, Silicon Anode, Li-Ion, or LiFePO4 battery. The voltage range is optimized for single-cell portable applications like smartphones or tablet PCs. While in shutdown, the operates in a true pass-through mode with only 2µA quiescent consumption for the longest battery shelf life. If the battery gets to a lower state of charge and its voltage becomes lower than the desired minimum system voltage, the TPS61280 device seamlessly transits into boost mode to utilize the full battery capacity.

Features:

95% Efficiency at 2.3MHz Operation

Wide VIN Range From 2.3V to 4.8V

Integrated Pass-Through Mode (35mΩ)

Programmable Valley Inductor Current Limit and Output Voltage

Programmable Average Input Current Limit and Output Voltage

Line and Load Transient

Low-Ripple Light-Load PFM Mode

In-Situ Customization with On-Chip E2PROM (Write Protect)

I2C Compatible I/F up to 3.4Mbps

Thermal Shutdown and Overload Protection