NCV8161ASN330T1G

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

The NCV8161ASN330T1G is a fixed-output ultra-low noise LDO regulator providing a nominal 3.3 V output with a maximum continuous current of 450 mA. It operates within an input voltage range of 1.9 V to 5.5 V and maintains ±2% accuracy over the -40°C to +125°C temperature range. The device features a typical quiescent current of 18 µA and standby current of 0.1 µA. Dropout voltage is typically 225 mV at full load. It includes integrated thermal shutdown, current limit, and active discharge functionality.

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

• Ultra-low noise performance suitable for RF and analog circuits
• High power supply rejection ratio across frequency ranges
• Integrated enable logic with active output discharge function
• Automotive-grade qualification with AEC-Q100 certification

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

• Parking camera modules
• Wireless LAN and Bluetooth devices
• Automotive infotainment systems
• Battery-powered mobile applications

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

Verify that the ordering suffix matches the required package type and functional variant. Confirm the 'A' designation indicates the presence of the active discharge feature on the EN pin. Ensure the component meets specific automotive site control requirements associated with the NCV prefix. Cross-reference the marking code against the official data sheet to validate assembly location and date codes prior to integration.

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

Select this part when low noise and high PSRR are critical for sensitive analog or RF loads. The TSOP-5 package provides a balance of thermal dissipation and board space efficiency. Verify that the application requires the active discharge feature; if not, consider the B-series variant. Ensure input and output ceramic capacitors meet stability requirements for the specific ESR characteristics.

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

This component belongs to the NCV8161 family of ultra-low noise LDO regulators designed for demanding RF and analog applications. The NCV prefix signifies automotive qualification and unique site control. The ASN330 suffix specifically denotes the 3.3 V fixed output version packaged in TSOP-5 with lead-free compliance and active discharge capability enabled via the enable pin.

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

NCV8161BSN330T1G (identical electrical specs without active discharge)

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

What is the function of the EN pin threshold voltage?

The device is guaranteed enabled when the EN pin voltage reaches 1.2 V. An internal pull-down ensures the device remains off if the pin is unconnected.

How does the active discharge function operate?

When the EN pin voltage drops below 0.4 V, an internal transistor activates to discharge the output capacitor, ensuring rapid output voltage decay upon shutdown.