ISL9110IRT7Z-T

Voltage Regulators - DC DC Switching Regulators Overview

The ISL9110IRT7Z-T is a synchronous buck-boost switching regulator manufactured by Renesas Electronics Corporation. It operates within an input voltage range of 1.8 V to 5.5 V and provides a single adjustable output up to 5.2 V with a maximum output current of 1.2 A. The device integrates 2.5 MHz fixed-frequency PWM control for compact passive component selection. It utilizes a 12-lead TDFN package with an exposed pad for thermal management. The unit supports operation across a temperature range of -40°C to +85°C and includes comprehensive protection features such as over-current, over-voltage, and thermal shutdown.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous buck-boost topology supporting both step-up and step-down conversion modes
• Integrated 2.5 MHz fixed-frequency PWM controller for efficient power conversion
• Built-in protection mechanisms including over-current, over-voltage, and thermal shutdown

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered devices requiring stable voltage regulation
• Single-cell lithium-ion battery systems
• Industrial sensor nodes and IoT applications
• Embedded systems with varying input supply conditions

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the exact suffix configuration against official Renesas documentation, as packaging variations exist within the ISL9110 family. Confirm RoHS compliance status and moisture sensitivity level prior to assembly. Check for end-of-life notifications or product change notices that may affect long-term availability. Ensure the specific reel or cut-tape quantity matches your production requirements. Validate pinout compatibility with existing PCB layouts before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing circuits that require bidirectional voltage conversion from a single-cell source. The 1.2 A output capability suits moderate load applications where space constraints favor a small TDFN footprint. Consider the 2.5 MHz switching frequency for minimizing inductor size compared to lower-frequency alternatives. Evaluate thermal performance based on ambient conditions and board copper area, as the exposed pad aids heat dissipation. Compare against other ISL9110 variants if higher current or different packaging is required.

Voltage Regulators - DC DC Switching Regulators Part Context

The ISL9110 series represents Renesas's portfolio of high-efficiency synchronous buck-boost regulators designed for portable electronics. This specific model belongs to the standard ISL9110 line, distinct from the ISL91107 series which offers higher current capabilities and different packaging options like WLCSP. The TDFN-EP-12 package provides a compact solution for space-sensitive designs. The part is managed under Renesas's Intersil heritage product line, ensuring compatibility with established design methodologies for low-power DC-DC conversion.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other ISL9110 variants with compatible pinouts and electrical characteristics. Verify functional equivalence regarding switching frequency and output current ratings. Cross-reference datasheets for thermal resistance and package dimensions to ensure mechanical fit. Consult manufacturer obsolescence notices for alternative recommendations if this specific suffix is discontinued.