Maxim Integrated MAX849ESE+ High-Efficiency, Low-Dropout, 3.3V/5V, Step-Up DC-DC Converters

The MAX849ESE+ from Maxim Integrated is a highly efficient, low-dropout, step-up DC-DC converter designed to provide a fixed 3.3V or 5V output from an input voltage as low as 0.7V. This advanced power solution is ideal for applications where extended battery life is crucial, and space is at a premium.

Equipped with an internal N-channel MOSFET switch, the MAX849ESE+ offers high efficiency and requires only a small number of external components to operate, making it perfect for space-constrained applications. The device's high switching frequency, up to 500kHz, allows for the use of small, low-cost inductors and capacitors, further reducing the overall footprint and bill of materials.

One of the standout features of the MAX849ESE+ is its ability to maintain a high efficiency over a wide range of load conditions. With a quiescent current of just 110µA, it is optimized for battery-powered devices, ensuring minimal drain during standby or light-load operation. Additionally, the device includes a low-battery detector that provides an early warning when the input voltage falls below a preset threshold, allowing for proactive power management.

The MAX849ESE+ also boasts multiple safety features to protect your application. These include thermal overload protection, which shuts down the device to prevent overheating, and a current limit to protect against excessive input current. Furthermore, the device is fully specified over the -40°C to +85°C extended temperature range, ensuring reliable performance across various environmental conditions.

Offered in a compact 16-pin narrow SO package, the MAX849ESE+ is a versatile power solution that can be used in a variety of applications, including portable computers, PDAs, cellular phones, and other portable equipment where efficient power conversion is required. Its combination of high efficiency, low quiescent current, and comprehensive protection features make it an excellent choice for designers looking to optimize power consumption and extend battery life in their products.