NCV8177 datasheet(7/11 Pages) ONSEMI

Part #	NCV8177

Description	Linear Voltage Regulator Fast Transient Response 500 mA with Enable

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NCV8177

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TYPICAL CHARACTERISTICS

VIN = VOUT−NOM + 0.5 V or VIN = 1.6 V (whichever is higher), VEN = 1.2 V, IOUT = 1 mA, CIN = COUT = 1.0 mF, TJ = 25°C

Figure 21. Power Supply Rejection Ratio

Figure 22. Output Voltage Noise Spectral

Density

FREQUENCY (Hz)

10M

1M

100k

10k

1k

100

10

0

10

30

40

50

60

80

90

1M

100k

10k

1k

100

10

0

1

2

3

4

5

6

Figure 23. Turn−ON/OFF − VIN Driven (slow)

Figure 24. Turn−ON − VIN Driven (fast)

Figure 25. Turn−ON/OFF − EN Driven

Figure 26. Line Transient Response

1 ms/div

VOUT−NOM = 1.8 V

VIN

IIN

VOUT

50

ms/div

VOUT−NOM = 1.8 V

IIN

VIN

VOUT

1 ms/div

VOUT−NOM = 1.8 V

VIN

IIN

VOUT

Without output discharge

With output discharge

5

ms/div

VOUT−NOM = 1.8 V

3.3 V

VIN

VOUT

tR = tF = 1 ms

VEN

2.3 V

1.8 V

20

70

COUT = 1 mF X7R 0805

VOUT_NOM = 1.8 V, VIN = 3.0 V

VOUT_NOM = 3.3 V, VIN = 4.3 V

VOUT_NOM = 1.8 V, VIN = 3.0 V

VOUT_NOM = 3.3 V, VIN = 4.3 V

COUT = 1 mF X7R 0805

Integral Noise:

10 Hz − 100 kHz: 54

mVrms

10 Hz − 1 MHz: 62

mVrms

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