MAX77511MEWB+T

Overview

The MAX77511MEWB+T is a four-phase, 3A-per-phase configurable step-down regulator designed for single or dual-cell lithium-ion/polymer battery inputs. It features an input voltage range of 3V to 10V and programmable output voltages from 0.25V to 5.2V via I2C interface. The device integrates six GPIOs for hardware control and includes pseudo-random spread spectrum modulation to suppress electromagnetic interference. It operates within a temperature range of -40°C to +125°C and utilizes a 3.54mm x 3.54mm WLP-64 package.

Feature Summary

• Configurable multi-phase architecture supporting single or multiple independent outputs
• Integrated pseudo-random spread spectrum modulation for EMI reduction
• Programmable soft-start, soft-stop, and dynamic voltage scaling transitions
• Six general-purpose input/output pins for system control and status

Applications

• DSLR cameras
• HD video mirrorless cameras
• Action cameras

Procurement Notes

Verify the specific ordering suffix MEWB against the manufacturer's official datasheet to confirm package type and tape-and-reel configuration. Ensure compatibility with the required input voltage range and phase configuration for your target application before finalizing procurement.

Selection Notes

Select this component when designing power systems for portable imaging devices requiring high current density and flexible output configurations. Consider the WLP-64 footprint constraints and the need for I2C-controlled voltage regulation during the schematic design phase.

Part Context

This part belongs to the MAX77511/MAX77711 family of four-phase buck converters. While the MAX77711 variant includes an integrated 300mA PMOS LDO, the MAX77511 does not. Both share the same core switching architecture and pinout compatibility for phase configuration.

Replacement Considerations

The MAX77711MEWB+T serves as a direct functional substitute if an integrated LDO is required. Verify that the absence of the LDO in the MAX77511 does not impact the load transient response requirements of the specific application.