Texas Instruments Inc. introduces a very small, high performance buck-boost converter with a 4-A switch and up to 96% efficiency. The TPS63020 power management integrated circuit (IC) helps extend battery life in smartphones, portable medical equipment, DLP pico projectors, and other battery-powered multimedia devices.
The buck-boost device operates with a wide input voltage range of 1.8 to 5.5 V and can discharge lithium batteries down to 2.5 V or lower, while maintaining excellent light load efficiency. The single-inductor, 2.4-MHz TPS63020 converter comes in a 3 x 4 x 1 mm package, and can achieve a complete dc/dc converter solution of 100 mm2, more than 60% smaller than other models on the market, according to the company.
Key features and benefits of TPS63020:
- High output current capability allows a battery-powered device to generate the most current with the greatest amount of efficiency; for example, 3 A at 3.3 V in step-down mode and more than 2.0 A at 3.3 V in boost mode at typical conditions.
- Dynamic input current limit effectively protects the circuit and system.
- Power Save Mode maintains high efficiency at light load.
- Supports one-cell lithium-based or 2 or 3-cell Alkaline, NiCd, or NiMH batteries.