ISL78302AARJCZ-T7A

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

The ISL78302AARJCZ-T7A is a dual low-dropout (LDO) linear voltage regulator from the Renesas ISL78302A series, designed for automotive applications. It integrates two independent LDOs capable of sourcing 300mA each. The device features very high power supply rejection ratio (PSRR) and low output noise, making it suitable for sensitive analog circuits. It operates with an input voltage range of 2.3V to 6.5V and maintains a typical quiescent current of 47µA when both outputs are active. The component is housed in a compact 10-lead DFN package.

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

• Integrates two high-performance 300mA LDOs with excellent transient response
• Provides very high PSRR and low output noise for clean power delivery
• Includes individual power-on-reset (POR) functions for each output channel
• Supports external programming of POR delay timing via a dedicated pin

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

• Automotive sensor power supplies requiring low noise
• Actuator control circuitry in vehicle ECUs
• RF module power regulation in automotive infotainment systems
• Microcontroller core voltage regulation in safety-critical domains

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

Verify the specific output voltage configuration for the ARJCZ suffix against the official datasheet, as fixed voltage variants exist. Confirm AEC-Q100 qualification status for your target automotive grade requirements. Check for end-of-life notices or production change notifications that may affect long-term availability. Ensure compatibility with your PCB footprint for the 10-DFN package type.

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

Select this component when dual isolated rails are needed from a single input source in space-constrained automotive designs. Consider its low quiescent current for battery-powered systems where standby consumption is critical. Evaluate the need for programmable POR delays if system startup sequencing requires precise timing control between different voltage domains.

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

This part belongs to the ISL78302A family of dual LDO regulators manufactured by Renesas Electronics Corporation (formerly Intersil). The series is specifically engineered for automotive environments, meeting stringent reliability standards. The ARJCZ suffix typically denotes a specific tape-and-reel packaging option and fixed output voltage combination within the broader product line.

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

Direct substitutes include other parts from the ISL78302A family with matching output voltages and packaging. Verify pin-to-pin compatibility before replacing. Cross-reference with Renesas' official replacement guide for any updated versions or obsolescence notices affecting this specific suffix.