ISL78302AARBJZ

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

The ISL78302AARBJZ is a dual-channel low-dropout (LDO) voltage regulator manufactured by Renesas Electronics Corporation. It features two independent positive output channels with fixed voltages of 2.6 V and 2.8 V. The device supports an output current of 300 mA per channel, operates within an input voltage range of 2.3 V to 6.5 V, and maintains a typical power supply rejection ratio (PSRR) of 90 dB. Quiescent current is specified at 47 uA, with a dropout voltage of 250 mV. Voltage regulation accuracy is 0.8%. It functions in temperatures from -40 C to +105 C and is housed in a DFN-10 surface-mount package.

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

• Dual-output architecture providing independent 2.6 V and 2.8 V rails for multi-rail system requirements
• High power supply rejection ratio (PSRR) of 90 dB for effective noise suppression in sensitive circuits
• Automotive-grade reliability designed to withstand extended temperature ranges up to +105 C
• Low quiescent current consumption of 47 uA to minimize standby power drain

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

• Automotive infotainment systems requiring clean power for audio and video processing
• Sensor modules in automotive environments needing stable low-noise voltage supplies
• Electronic control units (ECUs) utilizing multiple regulated voltage domains
• ADAS sensor interfaces demanding high PSRR for signal integrity

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

Verify the specific suffix 'RBJZ' against the official Renesas datasheet to confirm pinout and electrical characteristics match the required design parameters. Confirm RoHS compliance status and moisture sensitivity level before integration. Check for active production status or obsolescence notices directly from the manufacturer, as availability may be limited for end-of-life components.

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

Select this component when designing automotive circuits that require dual isolated LDO outputs with high noise immunity. Ensure the input voltage remains within the 2.3 V to 6.5 V range under all operating conditions. Verify that the thermal dissipation capabilities of the DFN-10 package are sufficient for the expected load current and ambient temperature. Consider the 0.8% accuracy requirement against the tolerance needs of the downstream loads.

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

The ISL78302A series belongs to Renesas's portfolio of automotive-grade power management integrated circuits. These devices are engineered to meet stringent automotive standards for reliability and performance. The series focuses on providing low-noise regulation for sensitive analog and digital loads in vehicle electronics, ensuring stable operation in electrically noisy environments typical of modern automobiles.

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

Consult the official Renesas replacement guide for direct equivalents. Verify compatibility of pinouts and electrical specifications if substituting with other dual-channel LDOs. No public substitute part numbers are confirmed in the provided data.