ISL9000IRKJZ

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

The ISL9000IRKJZ is a dual low-dropout (LDO) linear voltage regulator manufactured by Renesas Electronics Corporation. It integrates two independent high-performance LDOs capable of sourcing 300mA from each output within a compact 10-lead DFN package. The device operates with an input voltage range of 2.3V to 6.5V and features fixed output voltages, including options such as 1.8V/2.85V or 2.5V/2.85V depending on the specific suffix variant. It exhibits extremely low quiescent current of approximately 42µA, very high power supply rejection ratio (PSRR) of 90dB at 1kHz, and low output noise typically around 30µV RMS. The regulator includes integrated Power-On-Reset (POR) functions for each channel and supports ceramic output capacitance between 1µF and 10µF.

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

• Integrates two independent 300mA LDO channels in a single compact package
• Provides extremely low quiescent current consumption for battery-powered applications
• Features very high power supply rejection ratio to minimize noise coupling
• Includes individual Power-On-Reset (POR) functionality for each output channel

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

• Portable electronic devices requiring efficient multi-rail power management
• Communication equipment needing low-noise stable voltage supplies
• Battery-operated systems prioritizing extended operational life
• Embedded systems utilizing microcontrollers and memory components

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

Verify the exact output voltage configuration corresponding to the specific suffix code, as variants exist for different fixed voltage combinations. Confirm package type compatibility during design-in, as the component utilizes a small form-factor DFN footprint. Check manufacturer documentation for moisture sensitivity levels and reflow soldering profiles to ensure proper handling and assembly procedures are followed according to industry standards.

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

Select this component when designing circuits that require dual isolated voltage rails with minimal static power draw. Ensure the application load current does not exceed the 300mA per channel limit. Verify that the required output capacitance falls within the stable range of 1µF to 10µF to maintain regulation stability. Consider the thermal dissipation capabilities of the DFN package relative to the expected ambient operating conditions and total power loss.

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

This part belongs to the ISL9000A series of dual LDO regulators originally developed by Intersil and now supported by Renesas Electronics. The series is designed for applications demanding high performance in a small footprint. Similar parts in the family may offer different output voltage combinations or slight variations in electrical characteristics while maintaining the same core architecture and pinout compatibility.

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

Direct replacements include other ISL9000AIRxxZ variants with matching output voltage configurations. Cross-reference datasheets to confirm identical pinouts and electrical specifications before substitution. Ensure any alternative component meets the same PSRR and noise requirements for sensitive analog sections.