NCV8505D2T50R4G

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

The NCV8505D2T50R4G is a fixed-output linear low-dropout (LDO) voltage regulator manufactured by onsemi. It provides a stable 5V output with a maximum current capacity of 400mA. The device supports an input voltage range up to 45V and features a typical dropout voltage of 0.6V at full load. Designed for automotive environments, it holds AEC-Q100 qualification and operates within a junction temperature range of -40°C to 150°C. Key electrical specifications include a static current of 350 µA and a maximum supply current of 45 mA. The component is housed in a D2PAK-7 surface-mount package.

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

• Integrated enable and reset control functions for system management
• Comprehensive protection against overtemperature, reverse polarity, and short circuits
• Automotive-grade reliability certified under AEC-Q100 standards

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

• Microprocessor power supply in automotive computer-based systems
• Power regulation for automotive sensor networks
• General automotive electronic control unit (ECU) biasing

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

Verify the specific suffix R4G corresponds to the tape-and-reel packaging configuration required for your assembly line. Confirm that the D2PAK-7 footprint matches your PCB design guidelines. Ensure the selected variant meets the specific thermal requirements of your enclosure. Cross-reference the datasheet revision date to ensure compatibility with your design specifications. Validate that the AEC-Q100 grade aligns with your vehicle's quality standards.

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

Select this component when a robust 5V rail is needed for automotive microprocessors requiring enable/reset logic. The high input voltage tolerance of 45V makes it suitable for load dump conditions common in automotive buses. Consider the D2PAK-7 package for its thermal dissipation capabilities relative to smaller packages. Evaluate the 400mA output limit against peak processor currents to ensure adequate headroom. The integrated reset feature simplifies board space compared to discrete solutions.

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

This part belongs to the NCV8505 series of automotive LDO regulators from onsemi. The series is designed specifically for harsh automotive environments, offering high reliability and comprehensive protection features. Other variants in the family may offer different output voltages or current ratings but share similar architectural protections and automotive certifications.

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

Direct substitutes within the same family include other NCV8505 variants with different output voltages if the 5V requirement can be adjusted. Verify pinout compatibility before replacing with other LDOs from different manufacturers. Check if alternative parts support the same enable and reset functionality.