ISL91110IIAZ-T

Voltage Regulators - DC DC Switching Regulators Overview

The ISL91110IIAZ-T is a synchronous step-down DC-DC converter from Renesas, designed for high-efficiency power management in portable and industrial applications. It integrates two N-channel MOSFETs and operates with an input voltage range of 2.7V to 5.5V. The device delivers up to 3A output current with adjustable output voltages. It features a fixed switching frequency of 1MHz, ensuring compact external component sizes. The IC includes comprehensive protection mechanisms such as over-current, over-temperature, and short-circuit protection. Packaged in a small 6x6mm QFN footprint, it supports low standby current modes for battery-powered systems.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification with dual N-channel MOSFETs for high efficiency
• Fixed 1MHz switching frequency enabling use of small inductors and capacitors
• Comprehensive protection suite including thermal shutdown and current limiting
• Adjustable output voltage with precise regulation capabilities

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronics requiring efficient power conversion
• Industrial control systems with limited space constraints
• Battery-operated devices needing extended runtime
• Embedded systems requiring stable low-voltage power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the exact suffix 'IAZ-T' matches your required tape-and-reel packaging configuration. Confirm that the operating temperature range aligns with your system's environmental specifications. Ensure compatibility with your PCB layout requirements for the QFN package. Cross-reference the datasheet revision date to confirm design-in validity.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Choose this component when input voltages remain between 2.7V and 5.5V. Select for designs prioritizing high efficiency at moderate load currents up to 3A. Consider if the fixed 1MHz frequency suits your EMI constraints and passive size limits. Evaluate if the integrated protection features meet your safety requirements without additional circuitry.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to Renesas' ISL9111x family of synchronous buck converters. These devices are engineered for applications demanding high power density and efficiency. The family shares common architectural features but varies in current ratings and package options. This specific model targets mid-range current applications within a compact form factor.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for direct pin-compatible alternatives within the same product family. Verify equivalent electrical characteristics such as input voltage range and maximum output current. Ensure thermal performance matches your heat dissipation strategy. Confirm availability of similar packaging options for seamless board redesign.