ISL78302AARBJZ-T

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

The ISL78302AARBJZ-T is an automotive-grade dual low-dropout (LDO) voltage regulator manufactured by Renesas Electronics. It features two independent positive fixed outputs, typically configured for 1.85V and 2.9V, each capable of sourcing up to 300mA. The device operates with an input voltage range of 2.3V to 6.5V and maintains a typical quiescent current of 47µA. It offers high power supply rejection ratio (PSRR) of 90dB and low output noise. The regulator includes protection features such as overcurrent and thermal shutdown, ensuring reliability in harsh environments.

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

• Dual output architecture providing independent regulation for multiple system rails
• Automotive qualification compliant with AEC-Q100 standards for enhanced reliability
• High power supply rejection ratio ensures stable operation under noisy conditions
• Integrated overcurrent and thermal shutdown protection mechanisms

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

• Automotive infotainment systems requiring clean power supplies
• Sensor modules in advanced driver assistance systems (ADAS)
• Body control modules needing low-noise voltage regulation
• Telematics units operating in electric vehicles

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

Verify the specific output voltage configuration required for your design, as the suffix may indicate different fixed voltage pairs. Confirm the tape-and-reel packaging format matches your automated assembly equipment capabilities. Check for end-of-life notices or production change notifications from Renesas to ensure long-term supply availability for your product lifecycle.

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

Select this component when dual isolated LDOs are needed for automotive applications with strict noise requirements. Ensure the input voltage remains within the 2.3V to 6.5V range for proper regulation. Consider the 10-DFN package size constraints and thermal dissipation needs given the 300mA per output capability. Verify that the 47µA quiescent current meets system standby power budgets.

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

This part belongs to the ISL78302A series of high-performance dual LDOs designed for automotive use. It complements other Renesas PMIC solutions by offering discrete, low-noise regulation for sensitive analog and digital loads. The series is characterized by its ability to maintain stability with small output capacitors while delivering high PSRR across a wide frequency range.

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

Check for direct pin-to-pin replacements within the ISL78302 family variants. Verify if alternative dual LDOs from Renesas meet the same AEC-Q100 grade and electrical specifications. Ensure any substitute supports the required 300mA output current and similar PSRR performance levels.