The TPS61090RSAR is a high efficiency, 3.3V, 375mA boost converter manufactured by Texas Instruments. It is designed for small electronic devices that require a higher voltage supply than their battery can provide. This integrated circuit (IC) offers several key features that make it an ideal choice for various portable applications.
One of the standout features of the TPS61090RSAR is its high efficiency. It utilizes a synchronous rectification technique, minimizing power losses and maximizing energy conversion efficiency. This makes it suitable for battery-powered devices that need long battery life and reduces the amount of heat generated, enabling smaller form factors.
The IC supports an input voltage range from 0.9V to 4.2V, making it compatible with several common battery chemistries like lithium-ion, lithium-polymer, and alkaline batteries. It features a fixed output voltage of 3.3V, which is adjustable using external resistors.
This boost converter offers a maximum output current of 375mA, allowing it to power a wide range of low-power devices such as IoT sensors, wearables, portable medical devices, and handheld instruments. Moreover, it provides a regulated output voltage even when the input voltage drops below the desired output voltage, ensuring a stable power supply.
The TPS61090RSAR incorporates a low-power shutdown mode, where the quiescent current decreases to an extremely low level, conserving energy when the device is not in use
