1.5-A output current buck-boost converter

The TPS631010 and TPS631011 are

constant frequency peak current mode control buck-boost converters in tiny wafer

chip scale package. They have a 3A peak current limit (typical) and 1.6V to 5.5V

input voltage range, and provide a power supply solution for system pre-regulators

and voltage stabilizers.

Depending on the input voltage, the

TPS631010 and TPS631011 automatically operate in boost, buck, or in 3-cycle

buck-boost mode when the input voltage is approximately equal to the output voltage.

The transitions between modes happen at a defined duty cycle and avoid unwanted

toggling within the modes to reduce output voltage ripple. 8µA quiescent current and

power save mode enable the highest efficiency for light to no-load conditions.

The devices offer a very small

solution size in WCSP.