NCP623MN datasheet(10/14 Pages) ONSEMI

Part #	NCP623MN

Description	Ultra Low Noise 150 mA Low Dropout Voltage Regulator with ON/OFF Control

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Manufacturer	ONSEMI [ON Semiconductor]

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NCP623

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10

0

70

BYPASS CAPACITOR (nF)

FREQUENCY (Hz)

Figure 16. Noise Density versus Bypass

Capacitor

Figure 17. RMS Noise versus Bypass Capacitor

(100 Hz − 100 kHz)

Figure 18. Output Voltage Settling Time versus

Bypass Capacitor

Figure 19. Output Voltage Settling Shape

Cbypass = 10 nF

2.0

3.0

4.0

5.0

50

40

30

20

0

10

1.0

60

10

Vin = 3.8 V

Vout = 2.8 V

CO = 1.0 mF

Iout = 60 mA

Tamb = 25°C

Vin = 3.8 V

Vout = 2.8 V

CO = 1.0 mF

Iout = 60 mA

Tamb = 25°C

Vin = 3.8 V

Vout = 2.8 V

Cout = 1.0 mF

Iout = 50 mA

Tamb = 25°C

Figure 20. Output Voltage Settling Shape

Cbypass = 3.3 nF

Figure 21. Output Voltage Settling Shape without

Bypass Capacitor

6.0

7.0

8.0

9.0

0

1200

1.0

2.0

3.0

4.0

6.0

10

1000

800

600

400

0

200

5.0

7.0

9.0

8.0

200

ms/div

500 mV/div

Cbyp = 10 nF

100

350

1000

10,000

250

200

150

100

0

1,000,000

300

50

100,000

Vin = 3.8 V

Vout = 2.8 V

CO = 1.0 mF

Iout = 60 mA

Tamb = 23°C

Cbyp = 10 nF

3.3 nF

0 nF

Vin = 3.8 V

Vout = 2.8 V

Cout = 1.0 mF

Iout = 50 mA

Tamb = 25°C

100

ms/div

500 mV/div

Cbyp = 3.3 nF

Vin = 3.8 V

Vout = 2.8 V

Cout = 1.0 mF

Iout = 50 mA

Tamb = 25°C

10

ms/div

500 mV/div

Cbyp = 0 nF

TYPICAL PERFORMANCE CHARACTERISTICS

Noise Performances

Settling Time Performances

Vn = 65

mVrms @ Cbypass = 0

Vn = 30

mVrms @ Cbypass = 3.3 nF

Vn = 25

mVrms @ Cbypass = 10 nF

over 100 Hz to 100 kHz

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