NCV8570SN33T1G

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

The NCV8570SN33T1G is a fixed-output low-dropout linear regulator manufactured by onsemi, designed for ultra-low noise applications. It provides a stable 3.3 V output with a maximum continuous current of 200 mA. The device operates within an input voltage range of 2.5 V to 5.5 V and features a typical power supply rejection ratio (PSRR) of 80 dB. Key electrical specifications include a quiescent current of 75 µA and a dropout voltage of 115 mV at full load. It supports operation across an extended temperature range from -40 °C to +125 °C and holds AEC-Q100 qualification for automotive reliability.

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

• Ultra-low noise architecture optimized for RF and sensitive analog circuits
• AEC-Q100 qualified for automotive grade reliability requirements
• Fixed 3.3 V output configuration ensuring consistent voltage regulation
• High power supply rejection ratio for effective ripple suppression

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

• RF module power supply in automotive infotainment systems
• Sensor biasing in advanced driver assistance systems (ADAS)
• Low noise power delivery for precision analog-to-digital converters
• Power management for microcontroller units requiring clean voltage rails

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

Verify the specific suffix 'SN33' confirms the 3.3 V fixed output variant, as the NCV8570B series includes multiple voltage options. Confirm package integrity for the SOT-23-5 form factor upon receipt. Ensure storage conditions comply with moisture sensitivity level requirements prior to surface mount assembly. Cross-reference the manufacturer datasheet for latest revision notes regarding pin compatibility and thermal characteristics.

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

Select this component when ultra-low noise performance is critical for RF or sensor signal integrity. The 200 mA output capability suits moderate load requirements without excessive heat dissipation. Verify that the 2.5 V minimum input voltage aligns with the system's battery or rail availability. Consider the SOT-23-5 package constraints for PCB layout and thermal management relative to higher current alternatives.

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

This part belongs to the NCV8570B family of ultra-low noise LDO regulators from onsemi. The family shares common architectural features but varies by output voltage and package type. The NCV8570BSN30T1G serves as a direct functional substitute with a 3.0 V output, while other variants offer different fixed voltages. All members maintain similar noise profiles and automotive qualification standards.

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

The NCV8570BSN30T1G is a confirmed alternative within the same series, differing only in its fixed 3.0 V output voltage. Ensure the application circuit can tolerate the 0.3 V difference if substituting directly. No other cross-model replacements are verified in the provided data.