ISL91106IIAZ-T

Voltage Regulators - DC DC Switching Regulators Overview

The ISL91106IIAZ-T is a high-efficiency synchronous buck-boost switching voltage regulator manufactured by Renesas Electronics Corporation. It integrates a 4.2A switch and operates with an adjustable output voltage, delivering up to 2.1A of output current. The device functions within an input voltage range of 1.8V to 5.5V and supports a fixed switching frequency of 2.5MHz. It is housed in a WLCSP-15 package and is rated for operation between -40°C and +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Supports buck, boost, and buck-boost topologies for flexible power management
• Integrates a high-current 4.2A internal switch for efficient power conversion
• Features selectable forced-PWM mode and external synchronization capabilities

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered portable electronics requiring wide input voltage ranges
• Systems utilizing single-cell lithium-ion or lithium-polymer batteries
• Applications demanding high efficiency across varying load conditions

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify component authenticity through authorized channels due to the presence of counterfeit risks in the market. Confirm that the specific suffix matches the required package and temperature rating. Check for End-of-Life (EOL) notifications from the manufacturer, as discontinuance may affect long-term supply availability. Ensure compliance with RoHS directives if required for your specific application environment.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a wide input voltage range is necessary to support both step-up and step-down operations. The integrated 4.2A switch allows for compact designs with reduced external inductor size compared to lower-current alternatives. Consider the WLCSP-15 package constraints regarding thermal dissipation and PCB layout requirements for optimal performance in space-constrained applications.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the ISL9110 family of high-efficiency buck-boost regulators designed by Renesas (formerly Intersil). The family focuses on providing robust power management solutions for portable devices. The ISL91106 variant specifically offers higher current capability than the base ISL9110 models, making it suitable for more power-intensive loads while maintaining small form factor advantages.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.