MXL7704-XQB-T

Overview

The MXL7704-XQB-T is a five-output universal PMIC from MaxLinear, designed to power low-power FPGAs, DSPs, and microprocessors. It integrates four synchronous buck regulators and one LDO, operating within an input voltage range of 4 V to 5.5 V. The device supports output voltages from 600 mV to 3.6 V with ±10% margin adjustment. Key electrical parameters include a maximum output current of 4 A, an input current of 8 mA, and a power dissipation of 3.65 W. It functions reliably between -40°C and +125°C.

Feature Summary

• Integrates four synchronous buck converters and one LDO for comprehensive multi-rail power delivery.
• Supports dynamic voltage control on high-power outputs to optimize processor power consumption.
• Features internal compensation and high switching frequency for rapid transient response.
• Includes I2C interface for programmable sequencing, monitoring, and fault protection configuration.

Applications

• Powering Xilinx Zynq Ultrascale+ MPSoC series devices
• Supplying ARM Cortex-A series processors including A7, A9, and A53
• Low-power FPGA and DSP system power management

Procurement Notes

Verify the specific suffix 'XQB' against official MaxLinear documentation to confirm pinout and pre-programmed voltage settings. Confirm availability status as distribution channels may list this component as obsolete or end-of-life. Ensure compatibility with the required I2C address and package type QFN-32 before finalizing procurement plans.

Selection Notes

Select this component when designing systems requiring a single IC solution for multiple core and I/O rails. It is suitable for applications needing precise voltage regulation with adjustable margins. Consider the thermal performance given the 3.65 W dissipation rating and ensure adequate PCB layout for the QFN-32 package to maintain reliability across the specified temperature range.

Part Context

The MXL7704 belongs to MaxLinear's specialized PMIC family optimized for complex digital logic. This series provides integrated solutions that replace discrete regulator designs, reducing board space and complexity. The part is engineered specifically for the power sequencing and efficiency requirements of modern programmable logic and embedded processors.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify if the MXL7704-A variant serves as a functional alternative for different processor architectures, though specific cross-reference data is not documented here.