NCP1117_07 datasheet(6/17 Pages) ONSEMI | 1.0 A Low−Dropout Positive Fixed and Adjustable Voltage Regulators

6 page

NCP1117, NCV1117

http://onsemi.com

t, TIME (

ms)

−20

7.5

6.5

120

160

200

100

1.0 k

10 k

100 k

100

200

400

600

800

1000

Iout, OUTPUT CURRENT (mA)

fripple = 20 kHz

Vripple v 0.5 VP−P

Vout = 5.0 V

Vin − Vout = 3.0 V

Cout = 10 mF

Cadj = 25 mF

TA = 25°C

fripple, RIPPLE FREQUENCY (Hz)

Vout = 5.0 V

Vin − Vout = 3.0 V

Iout = 0.5 A

Cout = 10 mF

Cadj = 25 mF, f > 60 Hz

Vripple v 3.0 VP−P Vripple v 0.5 VP−P

Vin − Vout w 3.0 V

Figure 10. NCP1117XTA Ripple Rejection

vs. Output Current

Figure 11. NCP1117XTA Ripple Rejection

vs. Frequency

Figure 12. NCP1117XT285

Line Transient Response

Figure 13. NCP1117XT285

Load Transient Response

Figure 14. NCP1117XT50

Line Transient Response

Figure 15. NCP1117XT50

Load Transient Response

Cin = 10 mF

Cout = 10 mF

Vin = 6.5 V

Preload = 0.1 A

TA = 25°C

t, TIME (

ms)

0.5

0.1

−0.1

120

160

200

Cin = 10 mF

Cout = 10 mF

Vin = 4.5 V

Preload = 0.1 A

TA = 25°C

t, TIME (

ms)

0.5

0.1

−0.1

120

160

200

t, TIME (

ms)

−20

5.25

4.25

120

160

200

Cin = 1.0 mF

Cout = 10 mF

Iout = 0.1 A

TA = 25°C

fripple = 120 Hz

Vripple v 3.0 VP−P

Cin = 1.0 mF

Cout = 10 mF

Iout = 0.1 A

TA = 25°C

Vin − Vout w Vdropout

Cadj = 200 mF, f v 60 Hz

TA = 25°C

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