NCV4279D1G

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

The NCV4279D1G is an automotive-grade linear low-dropout (LDO) voltage regulator manufactured by onsemi. It provides a fixed 5V output with a maximum current capacity of 150mA. The device supports input voltages up to 45V and features a typical dropout voltage of 0.5V at 100mA load. It incorporates comprehensive protection mechanisms including over-temperature shutdown, reverse polarity protection, and short-circuit limiting. The component operates within a temperature range of -40°C to 125°C and is housed in an 8-SOIC package.

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

• Integrated reset function for system supervision
• Automotive AEC-Q100 qualification for reliability
• Built-in thermal overload and short-circuit protection

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

• Automotive electronic control units requiring stable 5V supply
• Sensor interface circuits in harsh environments
• Infotainment system power distribution networks

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

Verify the specific suffix 'G' indicates RoHS compliance status against official datasheets, as some sources list the base NCV4279D1 as non-compliant. Confirm availability through authorized distributors or secondary markets like Rochester Electronics due to potential end-of-life status. Ensure the 8-SOIC package dimensions match the target PCB footprint before finalizing procurement orders.

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

Select this component when a fixed 5V output is required for automotive applications needing high input voltage tolerance up to 45V. Consider the 150mA current limit and 0.5V dropout characteristics for efficiency calculations. The integrated reset feature makes it suitable for microcontroller power supplies where brown-out detection is critical. Verify thermal management requirements given the 125°C junction temperature rating.

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

This part belongs to the NCV4279 series of automotive LDO regulators designed for robust performance in vehicle electronics. The series offers various output voltages and packages, with the D1 variant specifically providing a fixed 5V output. It is engineered to meet stringent automotive quality standards, ensuring longevity and stability in demanding electrical environments compared to standard industrial grade components.

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

Check for direct pin-compatible substitutes within the NCV4279 family offering different output voltages if system requirements change. Verify equivalent automotive-grade LDOs from other manufacturers that match the 150mA current and 45V input specifications. Ensure any replacement maintains the same 8-SOIC package outline and thermal characteristics to avoid PCB redesign.