ISL78302ARNWZ

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

The ISL78302ARNWZ is a dual-channel low-dropout (LDO) linear voltage regulator manufactured by Renesas Electronics Corporation. It provides two independent fixed output voltages of 1.2V and 3.3V, each capable of sourcing up to 300mA of output current. The device operates within an input voltage range of 2.3V to 6.5V and features a typical quiescent current of 47µA with both LDOs active. It offers high power supply rejection ratio (PSRR) performance, typically 64dB, and maintains a low dropout voltage of approximately 300mV at full load. Designed for automotive applications, it is AEC-Q100 qualified and rated for operation between -40°C and +105°C.

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

• Integrates two high-performance LDO channels in a single compact package
• Provides individual power-on-reset (POR) functions for each output channel
• Features extremely low quiescent current consumption for battery-powered systems
• Includes separate enable pins for independent control of each regulator output

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

• Automotive infotainment system power distribution
• Sensor node power management in connected vehicles
• Low-noise analog circuit powering in automotive electronics
• General-purpose dual-rail power supplies for embedded controllers

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

Verify the specific suffix 'ARNWZ' against the official Renesas datasheet to confirm pinout compatibility and output voltage configuration. Confirm RoHS compliance status and moisture sensitivity level prior to assembly. Check for end-of-life notices or obsolescence warnings from the manufacturer, as availability may be limited for older part numbers.

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

Select this component when a dual-output solution is required with strict noise and PSRR constraints. Ensure the application demands fixed 1.2V and 3.3V rails simultaneously. Verify that the load current does not exceed 300mA per channel. Consider thermal dissipation requirements based on the DFN-10 package and ambient operating conditions.

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

This part belongs to the ISL78302A series of dual LDO regulators designed for automotive and industrial environments. The series emphasizes low noise and high PSRR, making it suitable for sensitive analog loads. The ARNWZ designation indicates a specific package variant and output configuration within the broader family.

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

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult Renesas technical support for direct replacements or cross-reference with similar dual LDO devices if this part is obsolete.