Maxim Integrated's MAX17220ELT+T NanoPower Boost Converter

The MAX17220ELT+T from Maxim Integrated is a highly efficient, compact, NanoPower synchronous boost converter designed for applications where power efficiency and battery life are critical. This device is ideal for battery-powered solutions, as it extends the life of the battery with its advanced power management features and low quiescent current.

With an input voltage range of 0.4V to 5.5V, the MAX17220ELT+T can operate from a single-cell battery or other low voltage sources, making it versatile for a variety of power supply configurations. It is capable of delivering up to 225mA with a 3.3V output from a 1.8V input, ensuring reliable performance for devices such as wearables, medical devices, wireless sensors, and portable electronics.

The boost converter integrates True Shutdown™ mode, which disconnects the output from the input with no forward or reverse current, ensuring minimal power consumption when the device is turned off. Additionally, the device features a 1.5µA ultra-low quiescent current that contributes to a longer battery life, especially in standby or idle modes.

The MAX17220ELT+T is designed with an internal synchronous rectifier, which enhances efficiency by eliminating the need for an external Schottky diode. This also helps to reduce the overall component count, saving space on the PCB. The device supports selectable Pulse Frequency Modulation (PFM) mode for improved efficiency at light loads, as well as a fixed 1.1MHz switching frequency that allows for the use of small, low-cost inductors and ceramic capacitors.

The compact package of the MAX17220ELT+T, a tiny 6-pin WLP (Wafer-Level Package), is perfect for space-constrained applications. The device also includes a variety of protection features such as overvoltage protection, short-circuit protection, and thermal shutdown, ensuring reliable operation under various conditions.

Overall, the MAX17220ELT+T is a powerful solution for designers looking to maximize battery life, minimize space, and enhance the efficiency of their power supply designs. Its robust feature set and ease of integration make it a go-to choice for a wide range of low-power applications.