NCP3020A Ver la hoja de datos (PDF) - ON Semiconductor
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NCP3020A Datasheet PDF : 23 Pages
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NCP3020A, NCP3020B, NCV3020A, NCV3020B
TYPICAL PERFORMANCE CHARACTERISTICS
1000
950
900
850
800
750
700
650
600
550
500
450
400
−40 −25 −10
VCC = 5 − 28 V
5 20 35 50 65 80
TEMPERATURE (°C)
8.0
7.0
7.5
6.5
NCP3020A
7.0
VCC = 5 V
6.0
6.5
VCC = 12 V, 28 V
5.5
6.0
5.5
5.0
95 110 125 −40 −25 −10
5.0
VCC = 5 V
NCP3020B
4.5
VCC = 12 V, 28 V
4.0
5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
Figure 15. Ramp Valley Voltage vs. Input Voltage
and Temperature
Figure 16. Soft−Start Time vs. Input Voltage and
Temperature
14
13.8
13.6
13.4
13.2
VCC = 12 V, 28 V
VCC = 5 V
13
−40 −25 −10
5 20 35 50 65 80
TEMPERATURE (°C)
95 110 125
Figure 17. Current Limit Set Current vs.
Temperature
Input = 12 V, Output = 3.3 V, Load = 5 A
C1 (Yellow) = VIN, C4 (Green) = VOUT
C2 (Red) = HSDR, C3 (Blue) = LSDR
Figure 18. Soft−Start Waveforms
Input = 12 V, Output = 3.3 V, Load = 5 A
C1 (Yellow) = VIN, C4 (Green) = VOUT
C2 (Red) = HSDR, C3 (Blue) = LSDR
Figure 19. Shutdown Waveforms
Input = 12 V
C1 (Yellow) = FB, C3 (Blue) = LSDR
C2 (Red) = HSDR, C4 (Green) = VIN
Figure 20. Startup into a Current Limit
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