NCV8664ST33T3G

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

The NCV8664ST33T3G is a fixed-output low-dropout (LDO) voltage regulator manufactured by onsemi. It provides a stable 3.3 V output with a maximum load current of 150 mA. The device supports an input voltage range from 4.5 V to 45 V and features a typical dropout voltage of 1.266 V at full load. It operates within an extended temperature range of -40°C to +150°C and holds AEC-Q100 qualification for automotive reliability. The component is housed in a SOT-223 package.

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

• AEC-Q100 qualified for automotive applications
• High input voltage tolerance up to 45 V
• Extended operating temperature range up to 150°C

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

• Automotive electronic systems requiring high-voltage input regulation
• Industrial control circuits operating in harsh environments
• Power management modules for embedded sensors

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

Verify the specific suffix against official datasheets to confirm pinout and thermal characteristics. Ensure compatibility with PCB footprint requirements for the SOT-223 package. Confirm that the 45 V maximum input rating aligns with system supply conditions. Check for moisture sensitivity level requirements during storage and handling procedures.

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

Select this component when a wide input voltage range and high-temperature operation are required. The 150 mA output current suits moderate load applications. Consider the 1.266 V dropout voltage for efficiency calculations under full load. Verify that the fixed 3.3 V output meets downstream circuit specifications without additional adjustment components.

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

This part belongs to the NCV8664 series of high-voltage LDO regulators designed for robust power management. The series targets automotive and industrial sectors where reliability under extreme conditions is critical. The ST33 variant specifically delivers a fixed 3.3 V rail, distinguishing it from adjustable or other fixed-voltage options within the same family.

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

Check for NCV8664CST33T3G as a potential alternative within the same series. Verify if NCV4266-2CST33T3G offers suitable performance for lower current needs. Ensure any substitute maintains the 45 V input rating and AEC-Q100 qualification.