TPS61021ADSGR

The TPS61021ADSGR is a high-efficiency, switching regulator power management chip manufactured by Texas Instruments (TI). It features a boost topology that allows for an input voltage range of 0.5V to 4.4V, with an adjustable output voltage ranging from 1.8V to 4.0V. This compact device, packaged in a WSON-8 footprint, is capable of delivering up to 3A (with some sources indicating 4.3A) of output current, making it suitable for a variety of applications.

The TPS61021ADSGR operates with a switching frequency of 2 MHz, enabling it to maintain high efficiency across a wide load current range. It also incorporates pulse width modulation (PWM) control technique and can operate in adjustable mode, providing flexibility in power management. In addition, the device features protection mechanisms such as output overvoltage protection, output short-circuit protection, and thermal shutdown protection, ensuring safe and reliable operation.

With its low quiescent current of 17 μA and the ability to operate in pulse frequency modulation (PFM) mode under light load conditions, the TPS61021ADSGR is well-suited for battery-powered devices. It can extend battery runtime by supporting low input voltages and providing a stable output voltage even as the battery discharges.

The TPS61021ADSGR is lead-free and compliant with Rohs standards, making it an environmentally friendly choice. It is also automotive temperature grade, with an operating temperature range of -40°C to 125°C, suitable for harsh environments.

Overall, the TPS61021ADSGR is an ideal power management solution for portable and smart devices powered by alkaline, NiMH, lithium-manganese, or lithium-ion batteries. Its compact size, high efficiency, and robust protection mechanisms make it a reliable choice for a wide range of applications, including battery-powered IoT devices, game controllers, thermostats, portable medical equipment, and supercapacitor backup systems.