onsemi NCP163ASN300T1G

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Product attributes Property Value
Manufacturer onsemi
Product Series
Packaging Factory | Cut Tape (CT)
Output Configuration Positive
Output Type Fixed
Number of Regulators 1
Voltage - Input (Max) 5.5V
Voltage - Output (Min/Fixed) 3V
Voltage - Output (Max) -
Voltage Dropout (Max) 0.155V @ 250mA
Current - Output 250mA
Current - Quiescent (Iq) 20 µA
Current - Supply (Max) -
PSRR 91dB ~ 60dB (100Hz ~ 100kHz)
Control Features Enable
Protection Features Over Current, Over Temperature, Soft Start
Operating Temperature -40°C ~ 125°C (TJ)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case SC-74A, SOT-753
Supplier Device Package SOT-23-5
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The NCP163ASN300T1G from onsemi is a 3.0V fixed-output LDO rated for 250mA. With an ultra-low 20 µA quiescent current and excellent 91dB PSRR at 100Hz, it delivers clean, stable power for noise-sensitive and battery-powered applications. The SOT-23-5 package enables compact designs.

  • Ultra-Low Power: 20 µA quiescent current significantly extends battery life in standby mode.
  • Superior Noise Rejection: 91dB PSRR at 100Hz ensures clean output for precision analog circuits.
  • High Current Capacity: 250mA supports a wide range of loads including wireless modules.
  • Low Dropout: 0.155V at full load maximizes efficiency in battery-powered systems.

Noise-Sensitive Sensor Power

91dB PSRR at 100Hz effectively filters mains hum, providing clean 3V for precision analog sensors in industrial data loggers.

Battery-Powered Medical Devices

20 µA quiescent current extends shelf life of glucose monitors and hearing aids, while stable 3V ensures reliable operation.

Wireless Modules

For BLE and Zigbee modules, the 250mA capacity and 60dB PSRR at 100kHz suppress high-frequency switching noise.

Automotive Infotainment

Stable 3V rail for MCU and display drivers in car audio systems, with low dropout ensuring operation during cold-crank conditions.

Portable Instrumentation

Compact SOT-23-5 package and low dropout make it suitable for handheld multimeters and field testers.

Q: What is the output voltage?
A: Fixed 3.0V output.
Q: What is the maximum current?
A: 250mA.
Q: What is the dropout voltage?
A: 0.155V at 250mA load.
Q: What is the quiescent current?
A: Only 20 µA, ideal for battery applications.
Q: What is the PSRR performance?
A: 91dB at 100Hz, 60dB at 100kHz.
Q: What package is it available in?
A: SOT-23-5.
Base Product Number : NCP163ASN300
250mA 3V High PSRR LDO Linear Regulator Low Quiescent Current onsemi SOT-23-5
Q: What is the output voltage?
A: Fixed 3.0V output.
Q: What is the maximum current?
A: 250mA.
Q: What is the dropout voltage?
A: 0.155V at 250mA load.
Q: What is the quiescent current?
A: Only 20 µA, ideal for battery applications.
Q: What is the PSRR performance?
A: 91dB at 100Hz, 60dB at 100kHz.
Q: What package is it available in?
A: SOT-23-5.