ISL9000IRNFZ-T

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

The ISL9000IRNFZ-T is a dual-channel low-dropout (LDO) linear voltage regulator manufactured by Renesas Electronics Corporation. It integrates two independent high-performance LDOs within a single compact package, designed for applications requiring efficient power management with minimal footprint. The device supports a wide input voltage range from 2.3V to 6.5V and provides fixed output voltages of 2.8V and 3.3V per channel. Each channel delivers a maximum output current of 300mA. Key electrical characteristics include a typical dropout voltage of 200mV at full load, extremely low quiescent current of 42µA when both LDOs are active, and high power supply rejection ratio (PSRR) of 90dB at 1kHz. The unit operates reliably across an extended temperature range of -40°C to +85°C.

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

• Integrates two independent 300mA LDO channels in a single compact package
• Provides excellent transient response to large current steps
• Features very high PSRR and low output noise for sensitive analog circuits
• Includes built-in protection against overcurrent, thermal overload, and undervoltage lockout

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

• Portable electronic devices requiring multiple stable voltage rails
• Battery-powered systems needing ultra-low quiescent current
• RF and communication modules requiring low-noise power supplies
• Embedded systems with strict space constraints

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

Verify the exact suffix configuration against official Renesas documentation, as suffixes determine specific output voltage combinations and packaging types. Confirm availability status, as this component may be subject to end-of-life notices or production changes. Ensure compatibility with your PCB layout regarding the DFN-10 package dimensions and thermal requirements. Cross-reference the datasheet revision date to ensure all electrical parameters match your design specifications.

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

Select this component when dual isolated LDO outputs are required in a small form factor. It is suitable for designs where low noise and high PSRR are critical for signal integrity. Consider the 2.3V minimum input voltage constraint relative to your battery discharge curve. Verify that the 300mA per channel limit meets the peak load demands of your downstream circuitry without exceeding thermal limits in the given ambient conditions.

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

The ISL9000 series belongs to Renesas' portfolio of low-power PMIC solutions, originally developed under Intersil before acquisition. This specific part represents a dual-LDO variant optimized for portable electronics. It shares the same core architecture and protection features as other members of the ISL9000 family but differs in output voltage configurations and pin assignments depending on the specific suffix. It serves as a cost-effective alternative to discrete regulator solutions.

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

Check for direct substitutes within the ISL9000 family with compatible output voltages. Evaluate alternatives from other manufacturers offering dual LDOs with similar 300mA ratings and DFN-10 packages. Ensure any replacement maintains the same input voltage range and quiescent current specifications to preserve system efficiency.