MXL7704-RQB-R

Overview

The MXL7704-RQB-R is a five-output universal Power Management Integrated Circuit (PMIC) designed for low-power FPGAs, DSPs, and microprocessors. It integrates four synchronous buck regulators and one Low-Dropout Regulator (LDO). The device accepts an input voltage range of 4.0V to 5.5V. It features dynamic voltage control on the highest power outputs and allows ±10% output voltage adjustment. Communication and configuration are handled via a 400kHz I2C interface.

Feature Summary

• Integrates four synchronous buck regulators and one LDO for comprehensive power delivery
• Supports dynamic voltage scaling to optimize power consumption in connected processors
• Provides programmable startup sequencing and shutdown logic through digital control
• Includes integrated fault protection mechanisms such as overcurrent and thermal shutdown

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 against official MaxLinear documentation to confirm pin compatibility and pre-programmed voltage settings. Ensure the selected variant matches the target processor's power rail requirements. Confirm RoHS compliance status with the manufacturer before finalizing procurement specifications.

Selection Notes

Select this component when designing systems requiring precise power sequencing for complex SoCs. The integrated I2C interface enables dynamic voltage adjustments during operation. Verify that the required output currents fall within the capabilities of the internal synchronous buck converters and the LDO.

Part Context

This PMIC belongs to the MXL7704 family, which includes variants optimized for specific processor architectures. The RQB-R designation indicates a specific configuration within this family, tailored for particular voltage rails and timing sequences required by modern embedded processing systems.

Replacement Considerations

MXL7704-X and MXL7704-A are confirmed public substitutes within the same product family offering similar functionality.