ISL9000AIRJNZ-T

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

The ISL9000AIRJNZ-T is a dual-output low-dropout (LDO) linear regulator from the Renesas ISL9000A series, housed in a 10-lead DFN package measuring 3x3 mm. It integrates two independent positive fixed voltage regulators with a maximum output current of 300 mA per channel. The device supports an input voltage range from 2.3 V to 6.5 V and provides fixed outputs of 1.8 V and 2.8 V. Key electrical characteristics include a typical dropout voltage of 200 mV at full load, a reference voltage of 1 V, and a quiescent current of 32 µA. 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 LDOs with excellent transient response capabilities for large current steps.
• Provides high power supply rejection ratio (PSRR) of 90 dB at 1 kHz to minimize noise coupling.
• Includes integrated protection features such as overcurrent limiting, thermal shutdown, and undervoltage lockout.
• Features enable pins and power-on reset functionality for system control and sequencing.

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

• Portable battery-powered consumer electronics requiring efficient dual-rail power distribution.
• Embedded systems utilizing microcontrollers or digital signal processors needing stable analog and digital supplies.
• Communication equipment requiring low-noise regulation for sensitive RF or baseband components.

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

Verify component authenticity through authorized channels due to discontinuation status. Confirm RoHS compliance and moisture sensitivity level prior to assembly. Review the latest product change notification for any manufacturing updates. Ensure storage conditions meet specified humidity requirements to prevent package damage during soldering processes.

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

Select this component when dual isolated rails are required from a single input source. The 300 mA output current suits moderate load applications. Verify that the input voltage remains above the minimum threshold of 2.3 V under all operating conditions. Consider the 10-DFN thermal performance for PCB layout optimization to ensure reliable operation within the specified temperature range.

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

This part belongs to the ISL9000A family of dual LDO regulators designed for space-constrained applications. The series emphasizes low noise and high PSRR, making it suitable for mixed-signal environments. The specific suffix indicates fixed output voltages and the DFN packaging variant. It represents a legacy solution from the Intersil acquisition by Renesas Electronics Corporation.

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

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the discontinued status, direct pin-to-pin replacements may require verification against updated datasheets. Evaluate alternative dual-LDO solutions from the manufacturer's current portfolio if availability is critical.