ISL78301FVEAZ

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

The ISL78301FVEAZ is a high-voltage, low quiescent current linear regulator designed for automotive applications. It provides a fixed positive output voltage of 3.3V with a maximum load current of 150mA. The device operates within an input voltage range up to 40V and features an enable pin for power management control. Packaged in a 14-lead HTSSOP (TDFN) format, it supports extended industrial temperature ranges suitable for under-the-hood environments.

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

• Designed specifically for always-on and keep-alive automotive circuits
• High input voltage tolerance up to 40V for robust system protection
• Low quiescent current operation to minimize battery drain during standby

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

• Always-on automotive systems requiring continuous power supply
• Keep-alive memory and real-time clock backup circuits
• Battery-powered automotive modules needing efficient voltage regulation

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

Verify the complete part number including suffixes such as VEAZ against official Renesas documentation to ensure correct packaging and tape-and-reel specifications. Confirm that the requested variant matches the required thermal performance and package dimensions for your PCB layout. Cross-reference the datasheet revision date to ensure compatibility with current manufacturing standards and quality certifications.

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

Select this component when designing automotive circuits that require a stable 3.3V rail from higher voltage sources up to 40V. It is appropriate for applications where low standby current is critical to preserve battery life. Ensure the thermal dissipation requirements are met given the 150mA output capability and the specific input-to-output voltage differential expected in the target application environment.

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

This device belongs to the ISL78301 family of high-voltage LDO regulators produced by Renesas Electronics. These components are engineered to meet the stringent reliability and environmental standards required for modern automotive electronics. The series focuses on providing efficient power management solutions for systems that must remain active even when the main vehicle ignition is off.

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

Check for direct substitutes within the ISL78301 series or compatible Renesas automotive LDOs with matching 3.3V output and 150mA current ratings. Verify pinout compatibility and thermal characteristics before substituting. Consult official Renesas cross-reference guides for validated alternative part numbers.