MAX77711AEWB+T

Overview

The MAX77711AEWB+T is a quad-phase configurable buck regulator from Analog Devices, designed for high-efficiency power conversion. It features four independent 3A switch phases that can be configured to deliver up to 12A in a single output or split into multiple lower-current outputs. The device supports an input voltage range of 2.3V to 10V and provides programmable output voltages between 0.25V and 5.2V. Integrated features include a 300mA PMOS LDO, pseudo-random spread spectrum modulation for EMI reduction, and flexible sequencing with soft-start/stop capabilities.

Feature Summary

• Quad-phase architecture allows configurable current distribution across four independent 3A switches
• Integrated 300mA PMOS low-dropout linear regulator (LDO) for auxiliary power needs
• Pseudo-random spread spectrum modulation technology reduces electromagnetic interference emissions
• Programmable I2C interface controls output voltage, sequencing, and hardware control functions

Applications

• DSLR cameras
• HD video mirrorless cameras
• Action cameras
• 2-cell Li+/Li-ion battery powered devices

Procurement Notes

Verify the specific suffix 'AEWB' against official datasheets to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints for the WLP-64 package. Confirm supply chain authenticity through authorized distributors only. Check for any recent product change notices regarding pinout or electrical characteristics updates.

Selection Notes

Select this component when high current density and multi-rail power generation are required from a single IC. The configurable phase topology offers design flexibility for varying load requirements. Consider the integrated LDO if a secondary clean rail is needed alongside the main buck outputs. Evaluate thermal performance based on the total output current configuration selected.

Part Context

This part belongs to the MAX77711 family of quad-phase buck regulators. It shares architectural similarities with the MAX77511 but includes an integrated LDO. The series targets portable consumer electronics requiring efficient power management from lithium-ion battery sources. The WLP-64 package provides a compact solution for space-constrained designs.

Replacement Considerations

The MAX77511 is a related device within the same family but lacks the integrated 300mA PMOS LDO found in the MAX77711. Verify if the LDO functionality is critical for the application before substituting. Both devices share similar phase configurations and control interfaces.