Analog Devices introduces the MAX77540, a high-efficiency step-down converter designed specifically for battery-powered applications where space is limited. This converter features two 3 A switching phases, utilizing an adaptive COT (constant on-time) current-mode control architecture. The two switching phases can be configured as either one phase delivering 6 A (2Φ) or two phases providing 3 A each (1Φ).
The MAX77540 offers a wide input voltage range, enabling direct conversion for sub-1 V outputs from 3-cell Li+ batteries, USB PD (Power Delivery), and 12 VDC supply rails. Output voltages are preset using resistors and can be further adjusted through an I2C-compatible interface, offering flexibility in voltage selection.
With a peak efficiency of 94%, the MAX77540 ensures efficient power conversion while minimizing power losses. It also features low quiescent current, contributing to overall power savings in battery-operated devices. Additionally, the compact solution size of the MAX77540 makes it particularly suitable for space-constrained equipment.
Overall, the MAX77540 from Analog Devices provides a highly efficient and flexible step-down conversion solution for battery-powered applications, offering the benefits of compactness, high efficiency, and adjustable output voltages through an I2C-compatible interface.
Resources - Block Diagram
4 V to 16 V input voltage for single stage conversion
94% peak efficiency (7.6 VIN, 3.3 VOUT) extends battery life
Less than 55 mm2 total solution size for high power density
Consumer
Industrial automation
Communications
Building and infrastructure
Healthcare
Tell us what you're after