ISL91106AIINZ-T

Voltage Regulators - DC DC Switching Regulators Overview

The ISL91106AIINZ-T is a high-efficiency buck-boost switching regulator manufactured by Renesas Electronics. It features a 4.2A switch current capability and operates with an input voltage range of 1.8V to 5.5V. The device supports adjustable output voltages or fixed configurations at 3.3V and 3.4V. It utilizes a 2.5MHz switching frequency and is housed in a WLCSP-15 package. The component functions within a temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Supports input voltages above or below the regulated output voltage for flexible power management
• Provides automatic and seamless transition between buck and boost operating modes
• Designed for standalone applications without requiring external microcontroller control

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered portable electronics
• Single-cell lithium-ion battery systems
• USB-powered devices requiring bidirectional voltage conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify component authenticity through authorized Renesas distributors due to potential counterfeit risks. Confirm RoHS compliance status via official datasheets. Check for end-of-life notifications as discontinuance may affect long-term supply chain stability. Ensure packaging specifications match design requirements.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when input voltage varies significantly around the target output level. The wide input range accommodates single-cell lithium batteries discharging from 4.2V down to 3.0V while maintaining regulation. Consider thermal performance in compact WLCSP packages for space-constrained designs.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the ISL91106 family of high-efficiency buck-boost regulators. The 'A' suffix denotes the version with enhanced 4.2A switch current capability compared to the standard ISL91106. The 'II' indicates the industrial temperature grade, and 'WLCSP-15' specifies the wafer-level chip-scale package type used for minimal footprint implementation.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include ISL91106IINZ-T for lower current applications. Verify pin compatibility and electrical parameters before substitution. Alternative families may require schematic modifications due to different control architectures.