The TPS6123x is a high current, high efficiency synchronous boost converter with constant
output current feature for single cell Li-Ion and Li-polymer battery powered products, in a wide
range of power bank, tablet, and other portable devices. The IC integrates 14-mΩ/14-mΩ power
switches and is capable of delivering up to a 3.5-A output current for 3.3-V to 5-V conversion with
up to 97% high efficiency. The device supports a programmable constant output current to control
power delivery, so to save power path components and lower total system thermal dissipation
The device only consumes a 10-µA quiescent current under a light load condition, and can
report load status to the system, which make it very suitable for Always-On applications. With the
TPS6123x, a simple and flexible system design can be achieved, eliminating external power path
components, saving PCB space, and reducing BOM cost.
In shutdown, the output is completely disconnected from the input, and current
consumption is reduced to less than 1 µA. Other features like soft start control, reverse current
blocking, over voltage protection, and thermal shutdown protection are built-in for system
The devices are available in a 2.5-mm × 2.5-mm VQFN package.
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