NCP690(2009) 데이터 시트보기 (PDF) - ON Semiconductor

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NCP690
(Rev.:2009)

1 A, Low IGND, Very Low Dropout Regulator (VLDO) with/without Enable

ON Semiconductor 

NCP690, NCP691, NCP692

TYPICAL CHARACTERISTICS

3.5

VN = 64 mVRMS

3.0

2.5

2.0

VIN = 6.0 V,

VOUT = 5.0 V,

CIN = COUT = 1 mF,

IOUT = 10 mA,

TA = 25°C

1.75

1.50

VIN = 3.5 V,

CIN = COUT = 10 mF,

DIOUT/Dt = 0.5 A/1 ms

VOUT

1.25

1.0

1.5

IOUT

0.5

1.0

0.5

0

0

10

100

1000

10,000

100,000

FREQUENCY (Hz)

Figure 21. Noise Density vs. Frequency

(Vout = 5.0 V)

TIME (100 ms/DIV)

Figure 22. Load Transient

(Vout = 1.5 V)

VIN = 3.5 V,

CIN = COUT = 10 mF,

2.7 DIOUT/Dt = 0.5 A/1 ms

2.5

VOUT

2.3

5.25

5.00

4.75

VIN = 6.0 V,

CIN = COUT = 10 mF,

DIOUT/Dt = 0.5 A/1 ms

VOUT

IOUT

1.0

IOUT

1.0

0.5

0.5

0

0

TIME (50 ms/DIV)

Figure 23. Load Transient

(Vout = 2.5 V)

CIN = COUT = 10 mF,

trise = 10 ms

VIN

1.55

1.50

1.45

VOUT

TIME (50 ms/DIV)

Figure 24. Load Transient

(Vout = 5.0 V)

4

3

2.55

2.50

2.45 CIN = COUT = 10 mF,

trise = 10 ms

5

VIN

4

VOUT

TIME (50 ms/DIV)

Figure 25. Line Transient

(Vout = 1.5 V)

TIME (50 ms/DIV)

Figure 26. Line Transient

(Vout = 2.5 V)

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