MAX77511REWB+T

Overview

The MAX77511REWB+T is a four-phase, 3A-per-phase configurable step-down regulator designed for 1S/2S lithium-ion battery inputs. It features an I2C-programmable output voltage range from 0.25V to 5.2V with programmable soft-start and DVS transition times. The device integrates six GPIOs for hardware control and utilizes pseudo-random spread spectrum modulation to suppress electromagnetic interference. It operates within a temperature range of -40°C to +125°C and is housed in a compact 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 and soft-stop functionality with flexible sequencing
• Six general-purpose input/output pins for system control and status

Applications

• DSLR cameras
• HD video mirrorless cameras
• Action photography equipment

Procurement Notes

Verify the specific suffix REWB against official Analog Devices documentation to confirm package type and tape-and-reel configuration. Ensure compatibility with required I2C addressing and GPIO configurations before finalizing procurement orders.

Selection Notes

Select this component when high current density and multi-output flexibility are required from a single power stage. Consider the integrated LDO absence compared to the MAX77711 variant if auxiliary low-power rails are needed without external components.

Part Context

This part belongs to the MAX775xx family of high-efficiency buck converters. It shares architectural similarities with the MAX77711 but lacks the integrated PMOS LDO found in that variant. Both devices target portable imaging applications requiring efficient power management from single-cell lithium sources.

Replacement Considerations

The MAX77711REWB+T serves as a direct functional substitute, offering identical switching performance with the addition of an integrated 300mA LDO. Verify pinout compatibility and software register mapping differences between the two variants during integration.