ISL9000IRNFZ-T

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The ISL9000IRNFZ-T is a dual-channel low dropout (LDO) voltage regulator from the ISL9000A series, manufactured by Renesas Electronics. It integrates two independent 300mA LDOs in a compact 10-lead DFN package. The device supports an input voltage range of 2.3V to 6.5V and provides fixed output voltages, commonly 2.5V and 3.3V per channel. Key electrical parameters include a maximum dropout voltage of 0.4V at 300mA, a quiescent current of 32µA, and a reference voltage of 1V. It operates within a temperature range of -40°C to +85°C.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Integrates two high-performance 300mA LDO channels with excellent transient response capabilities.
• Provides extremely low quiescent current consumption for efficient power management.
• Features very high Power Supply Rejection Ratio (PSRR) and low output noise characteristics.
• Includes comprehensive protection mechanisms such as overcurrent, thermal shutdown, and undervoltage lockout.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Portable battery-powered electronic devices requiring efficient power regulation.
• Wireless communication modules needing low-noise power supplies.
• Embedded systems utilizing microcontrollers or digital signal processors.
• Industrial control equipment operating in harsh environmental conditions.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify component authenticity through authorized distributors due to discontinuation status. Confirm package integrity and moisture sensitivity level handling procedures upon receipt. Cross-reference datasheet revision numbers to ensure compatibility with existing design specifications. Validate that the specific suffix matches required output voltage configurations before integration into production workflows.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when dual isolated rails are required from a single input source. Ensure input voltage remains within the 2.3V to 6.5V operational window. Verify that load currents do not exceed the 300mA limit per channel. Consider the 10-DFN footprint constraints during PCB layout planning. Evaluate thermal dissipation requirements based on expected dropout voltage and load conditions.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This part belongs to the ISL9000 family of dual LDO regulators designed for space-constrained applications. It succeeds earlier Intersil designs now managed under Renesas Electronics. The device replaces older discrete solutions by integrating two regulators into a single small outline package. It targets markets demanding high efficiency and low noise in portable electronics.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Direct substitutes may include other dual LDOs from the same manufacturer family with compatible pinouts. Verify equivalent output current ratings and voltage accuracy specifications. Check for identical package dimensions to ensure mechanical fit without redesigning the PCB footprint.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators FAQ

What is the typical output noise specification for this regulator?

The typical output noise is 30µV RMS measured at 100µA load with a 1.5V output setting.

Does the ISL9000IRNFZ-T support adjustable output voltages?

No, this specific variant features fixed output voltage configurations determined by the part suffix.

What protection features are integrated into the device?

The device includes overcurrent protection, thermal shutdown, and undervoltage lockout (UVLO) functions.