TPS63020 is a compact high efficiency buck-boost regulator. It accepts input voltages from 1.8 V to 5.5 V and can deliver up to 3 A of output current. Efficiency reaches up to 96 percent. The device automatically switches between buck and boost operation to maintain a stable output as the input source varies. Key benefits - Wide input range supports multiple power sources without changing regulators - High efficiency up to 96 percent reduces heat and extends battery life - Automatic buck-boost operation provides seamless regulation across battery charge and USB inputs - Small form factor suitable for space-constrained designs - Output current capability up to 3 A supports microcontrollers, sensors, and peripherals - Simple integration in battery powered and portable electronics Specifications at a glance - Input voltage: 1.8 V to 5.5 V - Output current: up to 3 A - Efficiency: up to 96 percent - Operation: automatic buck and boost Use scenarios - Battery powered handheld devices where input voltage drifts during discharge - IoT sensors or compact controllers powered from USB or battery that require a stable output - Portable electronics that must operate from a flexible power source with minimal external components