ISL78302ARCWZ

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

The ISL78302ARCWZ is a dual-channel low-dropout (LDO) voltage regulator from the Renesas ISL78302A series, designed for automotive applications. It features high power supply rejection ratio (PSRR) and low noise characteristics. The device operates with an input voltage range of 2.3 V to 6.5 V and provides two fixed output voltages: 1.2 V and 2.5 V. Each channel supports an output current of 300 mA. Key electrical parameters include a typical PSRR of 64 dB, a quiescent current of 47 µA, and a dropout voltage of 300 mV. The component is housed in a DFN-10 package and functions within a temperature range of -40°C to +105°C.

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

• Dual-channel architecture providing independent 1.2 V and 2.5 V outputs
• High power supply rejection ratio (PSRR) for noise-sensitive applications
• Automotive-grade reliability with wide operating temperature range
• Low quiescent current consumption for efficient power management

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

• Automotive infotainment systems requiring clean power rails
• Sensor interface circuits needing low-noise voltage regulation
• Body control modules (BCM) with multiple voltage requirements
• ADAS sensor power supplies demanding high PSRR

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

Verify the specific suffix 'CWZ' against the official Renesas datasheet to confirm pinout, thermal pad configuration, and moisture sensitivity level. Ensure the ordering part number matches the exact output voltage combination and package type required for your design. Check for end-of-life status or obsolescence notices directly from the manufacturer before finalizing procurement plans.

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

Select this component when dual isolated LDOs are needed in a compact automotive environment. The fixed 1.2 V and 2.5 V outputs eliminate external resistor networks. Consider the 300 mA per channel limit and the 6.5 V maximum input voltage. The DFN-10 package offers thermal performance suitable for space-constrained PCB layouts while maintaining automotive qualification standards.

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

The ISL78302ARCWZ belongs to the ISL78302A family of high-performance LDO regulators. This series is characterized by its focus on low noise and high PSRR, making it suitable for sensitive analog and RF circuits in automotive electronics. The 'A' designation typically indicates automotive grade qualification, ensuring compliance with rigorous reliability standards required for vehicle integration.

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

Consult the Renesas ISL78302A family cross-reference guide for direct pin-to-pin replacements. Verify that any substitute maintains the same dual-output configuration (1.2 V/2.5 V), DFN-10 package, and automotive temperature rating. Ensure equivalent PSRR and noise specifications if used in noise-sensitive applications.