ISL9123IRNZ-T

Voltage Regulators - DC DC Switching Regulators Overview

The ISL9123IRNZ-T is a highly integrated buck switching regulator from Renesas Electronics Corporation, designed for efficient power management in compact applications. It operates with an input voltage range of 1.8 V to 5.5 V and delivers a maximum output current of 500 mA. The device supports adjustable output voltages ranging from 1.8 V to 5.375 V, with the capability to supply outputs down to 0.4 V. It features an ultra-low quiescent current of 1.3 uA, enhancing energy efficiency during standby or light-load conditions. Packaged in an 8-lead DFN (2x3 mm) format, it supports surface mount technology and functions within a temperature range of -40°C to 85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Highly integrated buck switching regulator topology
• Ultra-low quiescent current for enhanced efficiency
• Adjustable output voltage capability down to 0.4 V
• Compact 8-lead DFN package design

Voltage Regulators - DC DC Switching Regulators Applications

• Portable consumer electronics requiring low power consumption
• Battery-powered devices needing efficient step-down regulation
• Embedded systems with strict space constraints
• IoT modules utilizing single-cell lithium battery inputs

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'IRNZ-T' against the official Renesas datasheet to confirm pinout compatibility and thermal characteristics. Ensure the ordering quantity matches the reel specifications provided by authorized distributors. Cross-reference the RoHS compliance status and recent Product Change Notifications (PCNs) to guarantee material consistency and manufacturing origin alignment with your assembly requirements.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact footprint and high efficiency are critical for battery-operated designs. It is suitable for applications where input voltages vary between 1.8 V and 5.5 V. Consider the 500 mA output limit and the need for external inductor selection based on desired ripple current. Evaluate the thermal performance of the DFN package relative to your PCB copper area and ambient operating conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the ISL9123 family, which includes variants such as ISL9123A and ISL9123B. These regulators are positioned within Renesas's portfolio of PMIC solutions for portable electronics. The series emphasizes miniaturization and low standby current, targeting modern mobile and wearable technologies that demand extended battery life from small form-factor power sources.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for direct substitutes like the ISL9123A or ISL9123B if pin-to-pin compatibility is required. Verify functional equivalence regarding output voltage ranges and current capabilities before substitution.