ISL78302AARPLZ-T

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

The ISL78302AARPLZ-T is an automotive-grade dual low-dropout (LDO) voltage regulator manufactured by Renesas Electronics. It provides two independent fixed output voltages of 1.85 V and 2.9 V, each capable of sourcing up to 300 mA. The device operates within a wide input voltage range of 2.3 V to 6.5 V and maintains a typical quiescent current of 47 µA with both LDOs active. It features high power supply rejection ratio (PSRR) of 90 dB at 1 kHz and low output noise. The component is housed in a 10-lead DFN package and is rated for operation between -40°C and +105°C.

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

• Integrates two high-performance LDOs with individual enable pins and power-on-reset functions
• Provides very high PSRR and low output noise suitable for sensitive analog circuits
• Supports stable operation with small output capacitance ranging from 1µF to 10µF

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

• Automotive infotainment systems requiring clean power rails
• Sensor modules in automotive environments needing low-noise regulation
• Embedded control units utilizing AEC-Q100 qualified components

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

Verify the specific output voltage configuration, as the ISL78302A series includes variants with different fixed voltage combinations. Confirm the package type matches the design footprint, noting that this specific suffix indicates reel packaging. Check end-of-life status, as the manufacturer has indicated obsolescence for this product line. Ensure compliance with RoHS directives and moisture sensitivity levels before integration.

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

Select this component when dual isolated low-noise supplies are required in space-constrained automotive designs. The fixed output options eliminate external resistor networks, simplifying layout. Consider the 300 mA per channel limit against peak load requirements. The wide input voltage range accommodates various battery and rail conditions common in vehicle architectures.

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

This part belongs to the ISL78302A family of dual LDO regulators designed for automotive applications. The family shares core architecture including low IQ and high PSRR but varies in output voltage settings and packaging styles such as tube or reel configurations. It serves as a power management solution for systems demanding high reliability under harsh thermal conditions.

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

Direct substitutes include other ISL78302A variants with matching output voltages, such as ISL78302AARJRZ or ISL78302AARMMZ. Verify pin compatibility and thermal performance when swapping packages. Note that all variants in this series are subject to end-of-life notices.