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NCP1512 Datasheet(PDF) 8 Page - ON Semiconductor

Part No. NCP1512
Description  PWM Buck Converter
Download  12 Pages
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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NCP1512 Datasheet(HTML) 8 Page - ON Semiconductor

 
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NCP1512
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8
0
200
400
600
800
1000
0
200
400
600
800
1000
Figure 5. Input Current Comparison
Iout (mA)
PFM Mode
Pulsed Mode
0
10
20
30
40
50
60
70
80
90
100
0.01
0.1
1
10
100
1000
PWM
Pulse
Iout (mA)
Figure 6. PWM versus Pulse Efficiency
Comparison
Vin = 3.6 V
Vout = 2.5 V
TA= 25°C
Vin = 3.6 V
Vout = 2.5 V
Freq PWM = 1.0 MHz
TA= 25°C
84
100
2.5
3
3.5
4
4.5
5
5.5
2.5 Vout
2.85 Vout
3.0 Vout
3.3 Vout
Vin
Figure 7. Vin versus Efficiency in PWM Mode
87
88
89
90
91
92
93
94
95
96
400
600
800
1000
1200
1400
2.5 Vout
2.85 Vout
3.0 Vout
3.3 Vout
FREQUENCY (kHz)
Figure 8. Frequency versus
Efficiency in PWM Mode
Iout = 100 mA
Freq = 1.0 MHz
TA= 25°C
Vin = 3.6 V
Iout = 100 mA
TA = 25°C
65
70
75
80
85
90
95
100
0
100
200
300
400
500
600
2.5 Vout
2.85 Vout
3.0 Vout
3.3 Vout
Iout (mA)
Figure 9. Iout versus Efficiency in PWM Mode
Vin = 3.6 V
Iout = 100 mA
Freq = 1.0 MHz
2
2.2
2.4
2.6
2.8
3
3.2
3.4
0
100
200
300
400
500
600
700
800
2.5 Vout
2.85 Vout
3.0 Vout
3.3 Vout
Figure 10. Vout versus Iout in PWM Mode
Iout (mA)
Vin = 3.6 V
Freg = 1.0 MHz
TA= 25°C


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