ISL9104AIRUNZ-T

Voltage Regulators - DC DC Switching Regulators Overview

The ISL9104AIRUNZ-T is a synchronous buck converter manufactured by Renesas Electronics. It operates with an input voltage range of 2.7 V to 6 V and delivers up to 500 mA output current. The device features a fixed switching frequency of 4.3 MHz, enabling the use of compact external components. It provides a single adjustable output voltage ranging from 0.8 V to 6 V. The component functions within a temperature range of -40 °C to +85 °C and utilizes a uTDFN-6 surface-mount package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous step-down topology for high efficiency
• Fixed 4.3 MHz switching frequency
• Low quiescent current operation
• Compact uTDFN-6 package design

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices
• Cellular phones
• PDAs
• Low-voltage microprocessor power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'UNZ' against official Renesas documentation to confirm RoHS compliance status and tape-and-reel packaging specifications. Cross-reference the part number with the manufacturer's latest datasheet to ensure availability, as discontinuation notices may affect procurement timelines. Confirm that the ordering code matches the required pinout and thermal pad configuration for your PCB layout.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing systems requiring a small form factor and high efficiency at moderate load currents. The 4.3 MHz frequency allows for smaller inductors compared to lower-frequency alternatives. Ensure the application input voltage remains within the 2.7 V to 6 V window. Verify that the required output voltage falls within the 0.8 V to 6 V adjustable range supported by the internal feedback network.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the ISL9104A family of low-power synchronous buck converters. It is designed specifically for battery-powered applications where space and efficiency are critical constraints. The series integrates power switches and control logic into a minimal footprint, targeting consumer electronics and mobile communication devices that require stable power delivery from single-cell lithium-ion sources.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult official substitution guides for compatible parts within the ISL9104 family or newer Renesas PMIC portfolios. Verify pin compatibility and electrical parameters before replacing discontinued stock.