ISL91110IRAZ-T

Voltage Regulators - DC DC Switching Regulators Overview

The ISL91110IRAZ-T is a high-efficiency 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 fixed output voltage of 3.3 V. The device supports a continuous output current of 2 A with integrated power switches. It features a switch frequency of 2.5 MHz and maintains a low quiescent current of 35 uA during operation. The component is housed in a WLCSP-25 package, suitable for surface-mount installation, and functions reliably across an operating temperature range from -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous buck-boost topology enables stable regulation across wide input voltage variations relative to the output level.
• Integrated power switches support high efficiency and reduce external component count for compact designs.
• Fixed 3.3 V output configuration simplifies system design for standard logic supply requirements.

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered consumer electronics requiring efficient power management
• Industrial systems utilizing single-cell lithium-ion or lithium-polymer batteries
• Embedded applications needing regulated 3.3 V logic supplies from varying input sources

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify that the specific suffix IR indicates the correct temperature grade and package variant for your application requirements. Confirm the WLCSP-25 footprint matches your PCB layout constraints. Ensure compatibility with the required 3.3 V fixed output specification. Check RoHS compliance status against project environmental standards. Validate that the 2 A output current capability meets the maximum load demands of the target circuit.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3 V output is required from a 1.8 V to 5.5 V input source. The 2 A current rating suits moderate load applications. The WLCSP-25 package offers a small form factor for space-constrained designs. Consider the 2.5 MHz switching frequency for balancing EMI and passive component size. Evaluate thermal performance within the -40°C to +85°C operating range for the intended environment.

Voltage Regulators - DC DC Switching Regulators Part Context

The ISL91110 series represents Renesas' portfolio of high-efficiency DC-DC converters designed for portable and industrial applications. This specific part integrates synchronous rectification to maximize energy conversion efficiency. It belongs to a family of regulators offering various output configurations and current capabilities. The technology supports modern mobile and IoT devices requiring compact power solutions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

ISL91110IINZ-T: Offers similar functionality but utilizes a different WLCSP-25 package variant. ISL91110IRNZ-T7A: Provides equivalent electrical specifications but employs a TQFN-EP-20 package, requiring PCB layout adaptation. Verify pinout compatibility and thermal characteristics before substitution.