ISL91133IINZ-T

Voltage Regulators - DC DC Switching Regulators Overview

The ISL91133IINZ-T is a synchronous step-down DC-DC converter manufactured by Renesas Electronics Corporation. It operates with an input voltage range of 2.5V to 5.5V and delivers a continuous output current of 3A. The device integrates high-side and low-side N-channel power MOSFETs, eliminating the need for external Schottky diodes. It features a fixed switching frequency of 2.5MHz, enabling the use of compact passive components. The IC provides comprehensive protection mechanisms including overcurrent protection, thermal shutdown, and undervoltage lockout. It is housed in a 10-pin TSSOP package suitable for space-constrained applications.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates high-efficiency synchronous rectification with internal power switches
• Supports wide input voltage ranges for flexible system design
• Includes robust fault protection features such as thermal regulation and current limiting

Voltage Regulators - DC DC Switching Regulators Applications

• Portable consumer electronics requiring efficient power management
• Industrial control systems utilizing low-voltage logic interfaces
• Communication infrastructure equipment needing stable DC rails

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'IINZ' against official Renesas documentation to confirm temperature grade and packaging details. Ensure compatibility with standard surface-mount reflow profiles. Cross-reference the manufacturer's latest datasheet for any updates regarding pin assignments or recommended external component values to guarantee reliable operation within specified electrical limits.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing circuits that require a compact, high-current solution from a single-cell lithium battery or similar 3.7V nominal source. It is appropriate for applications prioritizing board space efficiency due to the small footprint of required inductors and capacitors at the 2.5MHz switching frequency. Consider thermal dissipation requirements based on the expected load current and ambient conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the ISL9113x series of synchronous buck converters designed for portable and industrial applications. It complements other Renesas power management solutions by offering a balance between performance and simplicity. The series targets markets demanding high efficiency and minimal external component counts to reduce overall bill of materials and assembly complexity.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for direct cross-references in distributor databases. Verify if alternative parts offer compatible pinouts and electrical characteristics. Ensure substitute components meet the same thermal and regulatory standards required for the original design implementation.