ISL91211BIIZ-T

Voltage Regulators - DC DC Switching Regulators Overview

The ISL91211BIIZ-T is a quad-output programmable Power Management IC (PMIC) from Renesas. It integrates four synchronous buck converters capable of delivering up to 5A per phase continuous output current. The device operates with an input voltage range of 2.5V to 5.5V and provides adjustable output voltages from 300mV to 2V. Packaged in a 54-ball WLCSP, it features proprietary R5 Technology for fast transient response and high accuracy.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates four independent buck controllers with reconfigurable power stages for flexible multi-phase or single-phase operation.
• Utilizes proprietary R5 Technology to ensure tight output accuracy, ultra-fast transient response, and seamless DCM/CCM transitions without external compensation.
• Incorporates automatic Diode Emulation and Pulse Skipping modes under light-load conditions to maximize efficiency and extend battery life.

Voltage Regulators - DC DC Switching Regulators Applications

• High-density portable computing devices requiring compact power solutions
• Embedded systems needing multiple regulated voltage rails
• Applications demanding high efficiency and small solution size

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'IIZ' against official Renesas documentation to confirm package type and tape/reel specifications. Confirm availability status as distribution channels may list limited stock or end-of-life notices. Ensure compatibility with your ECAD tools by sourcing the correct model file directly from the manufacturer.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing systems that require four distinct output voltages from a single PMIC footprint. It is suitable for applications where space constraints necessitate a WLCSP package and where high dynamic load performance is critical. Compare against the ISL91211A if only three outputs are required.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the ISL91211 series of highly integrated PMICs designed for mobile and embedded applications. It complements other Renesas power management solutions by offering a compact form factor with high current density capabilities.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The ISL91211AIIZ-T is a related variant within the same family, differing primarily in output configuration (three vs. four outputs). Verify pinout and software compatibility before substitution.

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum output current per phase?

The ISL91211BIIZ-T can deliver up to 5A of continuous output current per phase.

Does the device require external compensation?

No, the proprietary R5 Technology controller provides stable operation without the need for external compensation components.