MXL7704-AQB-T

Overview

The MaxLinear MXL7704-AQB-T is a specialized Power Management IC (PMIC) designed for low-power FPGAs, DSPs, and MCUs. It features five outputs: four synchronous buck regulators and one LDO. The device operates with an input voltage range of 4V to 5.5V and supports output voltages from 600mV to 3.6V. It utilizes an I2C interface for dynamic voltage scaling, power sequencing control, and status monitoring. The component is housed in a QFN-32 package.

Feature Summary

• Integrates four synchronous buck converters and one LDO for multi-rail power delivery
• Provides programmable power-up and power-down sequencing via I2C interface
• Includes comprehensive fault protection mechanisms such as over-current and thermal shutdown
• Supports dynamic voltage scaling to optimize power efficiency for connected processors

Applications

• Xilinx Zynq Ultrascale+ MPSoC systems
• ARM Cortex-A series processor platforms
• Low-power FPGA designs
• Digital Signal Processor (DSP) applications

Procurement Notes

Verify the specific suffix 'T' against official MaxLinear documentation to confirm tape-and-reel packaging specifications. Ensure compatibility with existing PCB footprints and I2C addressing configurations. Cross-reference the part number with current availability status, as some variants may be subject to discontinuation or lifecycle changes.

Selection Notes

Select this PMIC when designing systems requiring precise power sequencing for complex SoCs like Xilinx Zynq or ARM Cortex processors. It is suitable for applications needing multiple regulated rails from a single 5V source with dynamic voltage adjustment capabilities. Consider the QFN-32 package constraints and thermal dissipation requirements during layout.

Part Context

The MXL7704 belongs to MaxLinear's specialized PMIC family, optimized for edge computing and embedded systems. It addresses the complexity of powering modern heterogeneous processors by integrating regulation and sequencing into a single compact solution, reducing bill-of-materials count and board space compared to discrete regulator approaches.

Replacement Considerations

MXL7704-X serves as a variant optimized for Xilinx Zynq Ultrascale+ MPSoC. MXL7704-A is another standard product variant. Verify pinout and electrical parameter equivalence before substitution.