ISL9103AIRUCZ-T

Voltage Regulators - DC DC Switching Regulators Overview

The ISL9103AIRUCZ-T is a synchronous buck converter IC manufactured by Renesas Electronics Corporation. It operates with an input voltage range of 2.7V to 6.0V and provides a fixed output voltage of 1.8V. The device guarantees a maximum output current of 500mA. It utilizes a 2.4MHz PWM switching frequency to optimize efficiency and component size. The regulator features low quiescent current, achieving 20µA in skip mode and less than 1µA during logic-controlled shutdown. It includes internal digital soft-start, peak current limiting, short circuit protection, and over-temperature protection. The component is housed in a compact 6-pin 1.6mm x 1.6mm uTDFN package suitable for surface mount applications.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• High-efficiency integrated synchronous buck regulator design
• Ultrasonic switching frequency in skip mode to prevent audible noise
• Internal digital soft-start and comprehensive fault protection mechanisms
• Discharge output capacitor functionality when disabled

Voltage Regulators - DC DC Switching Regulators Applications

• PDAs and Palmtops
• WCDMA Handsets

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'T' indicates reel packaging configuration against official Renesas documentation. Confirm RoHS compliance status and MSL rating prior to integration. Ensure the fixed 1.8V output variant matches system requirements, as other voltage options exist within the ISL9103 family. Cross-reference the manufacturer part number with distributor catalogs to confirm availability and lead times.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for portable applications requiring high efficiency and low noise operation. The 2.4MHz frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the 500mA output limit when sizing for load requirements. The fixed 1.8V output simplifies design but limits flexibility if different voltages are needed. Evaluate thermal performance within the small uTDFN package for dense PCB layouts.

Voltage Regulators - DC DC Switching Regulators Part Context

The ISL9103 series comprises low IQ, high-efficiency synchronous buck converters designed for battery-powered portable electronics. The ISL9103AIRUCZ-T represents a specific variant with fixed 1.8V output and reel packaging. It belongs to the broader ISL9103 family which includes variants with different output voltages and frequencies, such as the ISL9104 series operating at 4.3MHz. These devices share common protection features and package styles.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Designers should consult official Renesas documentation for potential cross-references or updated product line replacements.