ISL78302AARJRZ-T7A

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

The ISL78302AARJRZ-T7A is a dual-channel low-dropout (LDO) voltage regulator from the Renesas ISL78302A series, designed for automotive applications. It features two independent positive fixed outputs with a maximum output current of 300 mA per channel. The device operates within an input voltage range of 2.3 V to 6.5 V and provides high power supply rejection ratio (PSRR) typical of 90 dB. Key electrical parameters include a quiescent current of 47 µA, a dropout voltage of 250 mV, and a voltage regulation accuracy of 0.8%. It is housed in a DFN-10 package and supports an operating temperature range from -40°C to +105°C.

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

• Dual-channel architecture providing independent regulated outputs for complex power distribution requirements.
• High PSRR performance ensures effective suppression of power supply noise and ripple.
• Automotive-grade qualification compliant with AEC-Q100 standards for reliability.
• Integrated protection mechanisms including overcurrent and thermal shutdown.

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

• Powering sensitive analog circuits in automotive infotainment systems
• Supplying stable voltage to sensors in engine control units
• Providing clean power rails for microcontrollers in body electronics

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

Verify the specific suffix T7A indicates tape-and-reel packaging versus tube variants. Confirm AEC-Q100 compliance status for the specific revision. Check end-of-life notices as some ISL78302A variants are marked obsolete. Ensure moisture sensitivity level handling procedures are followed during assembly.

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

Select this component when dual isolated LDOs with high noise rejection are required in automotive environments. Compare quiescent current specifications against system standby power budgets. Verify that the 300 mA output current meets the load requirements for both channels simultaneously. Ensure the input voltage range aligns with the vehicle's battery or pre-regulated supply.

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. The family is characterized by low noise and high PSRR, targeting automotive ECU applications. The ISL78302AARJRZ-T7A specifically denotes the dual-output variant in a DFN-10 package with tape-and-reel packaging.

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

Check for direct pin-compatible replacements within the ISL78302A family such as ISL78302AARMMZ. Verify if newer Renesas PMIC families offer integrated solutions replacing discrete LDOs. Confirm availability of alternative suppliers offering equivalent automotive-grade dual LDOs.