ISL91211AIKZ-TR5873

Voltage Regulators - DC DC Switching Regulators Overview

The ISL91211AIKZ-TR5873 is a triple-output programmable Power Management IC (PMIC) from Renesas, featuring four-phase synchronous buck converters. It delivers up to 5A per phase with a 5V to 5.5V supply voltage and ±0.7% system accuracy. The device supports independent Dynamic Voltage Scaling (DVS), I²C programmability from 0.3V to 2V, and PWM frequencies from 2MHz to 6MHz. Packaged in a 2.551mm x 3.67mm 54-ball WLCSP, it integrates low ON-resistance MOSFETs for high efficiency and fast transient response.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Proprietary R5 Technology controller ensures tight output accuracy and ultra-fast transient response without external compensation
• Flexible reconfiguration of power stages across three outputs allows seamless design-in for diverse high-power applications
• Automatic Diode Emulation and Pulse Skipping modes optimize efficiency under light-load conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Xilinx Artix-7 FPGA power solutions
• Xilinx Zynq-7000 series FPGA power supplies
• Xilinx Spartan-7 FPGA reference designs

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix TR5873 against official Renesas documentation to confirm tape-and-reel specifications and packaging details. Ensure compatibility with required I²C communication protocols and DVS control signals for your target FPGA platform. Cross-reference the package dimensions and pin pitch with your PCB layout constraints before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this PMIC when designing systems requiring multiple regulated rails from a single input source with minimal component count. It is suitable for applications demanding high efficiency and small solution sizes, particularly where fast load transients must be managed without complex external compensation networks. Consider its programmability for meeting specific voltage sequencing requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the ISL91211 family of multi-output PMICs designed for high-performance embedded processing. It complements Renesas' portfolio of power management solutions by providing integrated buck conversion capabilities optimized for complex digital logic loads. The device represents a shift towards highly integrated power stages that reduce board space and simplify thermal management in dense electronic assemblies.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The ISL91211B serves as a quad-output variant within the same family. Verify if the additional output channel is necessary or if the triple-output configuration of the ISL91211A is sufficient for the application requirements.