NCP551SN15T1G datasheet(7/11 Pages) ONSEMI

Part #	NCP551SN15T1G

Description	150 mA CMOS Low Iq Low?묭ropout Voltage Regulator

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NCP551, NCV551

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Figure 14. Load Transient Response OFF

TIME (ms)

Figure 15. Load Transient Response ON

TIME (ms)

150

−500

500

0

150

−500

−1000

0

1000

03

2

1

4

5

6789

0

3

2

1

4

56

78

9

Vout = 3.3 V

Cout = 10 mF

Vout = 3.3 V

Cout = 10 mF

Iout = 3.0 mA − 150 mA

0

1

600

2

400

200

Figure 16. Turn−On Response

3

Vin = 4.3 V

Vout = 3.3 V

RO = 3.3 k

VEN = 2.0 V

TIME (

ms)

0

1

3

2

800

2000

1200

1000

1400

0

1600 1800

0

1

600

2

400

200

Figure 17. Turn−On Response

3

Vin = 3.8 V

Vout = 2.8 V

RO = 2.8 k

VEN = 2.0 V

TIME (

ms)

0

1

3

2

800

2000

1200

1000

1400

0

1600 1800

Co = 1 mF

Co = 10 mF

Co = 1 mF

Co = 10 mF

Figure 18. Output Voltage versus Input Voltage

Figure 19. Output Voltage versus Input Voltage

0

2

6

4

2

0

3

Vin, INPUT VOLTAGE (VOLTS)

2.5

812

10

0.5

1.5

1

Vin = 0 V to 12 V

Vout(nom) = 2.8 V

Iout = 10 mA

Cin = 1 mF

Cout = 1 mF

VEN = Vin

0

2

6

4

2

0

3

Vin, INPUT VOLTAGE (VOLTS)

2.5

812

10

0.5

1.5

1

Vin = 0 V to 12 V

Vout = 3.3 V

Iout = 10 mA

Cin = 1 mF

Cout = 1 mF

VEN = Vin

3.5

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NCP551SN15T1G Datasheet(PDF) 7 Page - ON Semiconductor

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