ISL91211BIKZ-TR5878

Voltage Regulators - DC DC Switching Regulators Overview

The ISL91211BIKZ-TR5878 is a quad-output programmable Power Management IC (PMIC) from Renesas. It integrates four highly efficient synchronous buck converters capable of delivering up to 5A per phase continuous output current. The device supports multiphase and single-phase operations with an input voltage range of 2.5V to 5.5V. It features proprietary R5 Technology for tight output accuracy, ultra-fast transient response, and seamless DCM/CCM transitions without external compensation. The IC includes integrated low ON-resistance MOSFETs, programmable PWM frequency, automatic Diode Emulation, and Pulse Skipping modes for light-load efficiency.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates four buck controllers with reconfigurable power stages for flexible multi-phase or single-phase operation
• Features proprietary R5 Technology controller providing tight output accuracy and fast load transient response
• Includes automatic Diode Emulation and Pulse Skipping modes to maximize battery life under light loads
• Supports independent Dynamic Voltage Scaling (DVS) and I2C/SPI communication via MPIOs and GPIOs

Voltage Regulators - DC DC Switching Regulators Applications

• Smartphones
• AR/VR Glasses
• Artificial Intelligence (AI) Processors

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix IKZ-TR5878 against official Renesas documentation to confirm tape-and-reel quantity and packaging details. Ensure the component matches the ISL91211B family specifications for quad-output PMIC functionality. Cross-reference the manufacturer part number with authorized distributors to confirm availability and authenticity before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this PMIC for designs requiring high output power in a small solution size. It is suitable for applications needing multiple regulated voltages from a single 5V supply rail. The integrated MOSFETs and programmable frequency allow for compact passive components. Consider the 54-ball WLCSP package constraints for PCB layout and thermal management requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

The ISL91211B is part of Renesas' advanced PMIC portfolio, designed for portable electronics. It complements other power management solutions by offering high-density integration. The device is optimized for mobile platforms where space and efficiency are critical. It shares architectural similarities with the ISL91211A but provides four outputs instead of three.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The ISL91211A is a related variant within the same family, offering three outputs instead of four. Verify pin compatibility and output configuration requirements when considering substitutes. No other direct public substitute part numbers are confirmed for this specific quad-output configuration.