NCP585DSAN09T1G datasheet(8/14 Pages) ONSEMI

Part #	NCP585DSAN09T1G

Description	Tri-Mode 300 mA CMOS LDO Regulator with Enable

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Manufacturer	ONSEMI [ON Semiconductor]

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NCP585

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TYPICAL CHARACTERISTICS

TIME, t (

ms)

ECO = H, Iout = 30 mA

Cout = Ceramic 1.0 mF

Vout = 2.6 V

10

50

100

2.68

2.66

2.64

2.62

2.60

2.58

2.56

0

Output Voltage

Input Voltage

20

60

30

70

40

80

90

5

3

2

1

0

4

−1

0.4

2.0

TIME, t (

ms)

4.0

5.0

4.5

4.0

3.5

3.0

2.5

2.0

0.0

0.8

2.4

1.2

2.8

1.6

3.2

3.6

5

3

2

1

0

4

−1

Output Voltage

Input Voltage

ECO = L, Iout = 30 mA

Cout = Ceramic 1.0 mF

Vout = 2.6 V

Iout = 30 mA

1

10

100

70

60

50

40

30

20

10

0

80

90

Figure 27. Ripple Rejection vs. Frequency

Figure 28. Ripple Rejection vs. Frequency

10

50

TIME, t (

ms)

100

0.88

0.86

0.84

0.82

0.80

0.78

0.76

0

Output Voltage

Input Voltage

20

60

30

70

40

80

90

4

2

1

0

−1

3

ECO = H, Iout = 30 mA

Cout = Tantalum 1.0 mF

Vout = 0.8 V

0.4

2.0

TIME, t (

ms)

4.0

3.0

2.5

2.0

1.5

1.0

0.5

0

0.0

0.8

2.4

1.2

2.8

1.6

3.2

3.6

4

2

1

0

−1

3

−2

1

10

100

70

60

50

40

30

20

10

0

80

90

FREQUENCY, f (kHz)

Iout = 1.0 mA

Iout = 50 mA

FREQUENCY, f (kHz)

Iout = 1.0 mA

Iout = 30 mA

Iout = 50 mA

Output Voltage

Input Voltage

ECO = L, Iout = 30 mA

Cout = Tantalum 1.0 mF

Vout = 0.8 V

Figure 29. Input Transient Response

Vout = 1.5 V

Vin = 2.5 V + 0.2 Vp−p

Cout = 2.2 mF, ECO = H

Vout = 1.5 V

Vin = 2.5 V + 0.2 Vp−p

Cout = 2.2 mF, ECO = L

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