NCP3012
TYPICAL PERFORMANCE CHARACTERISTICS
806
804
802
Vin = 12 V, 28 V
800
798
Vin = 5 V
796
794
792
−40 −25 −10
5 20 35 50 65 80
TEMPERATURE (°C)
95 110 125
Figure 3. Feedback Reference Voltage vs. Input
Voltage and Temperature
7.0
6.5
6.0
Vin = 28 V
5.5
Vin = 12 V
5.0
4.5
Vin = 5 V
4.0
−40 −25 −10
5 20 35 50 65 80
TEMPERATURE (°C)
95 110 125
Figure 5. Supply Current vs. Input Voltage and
Temperature
1.39
1.375
1.36
Vin = 5 V
1.345
1.33
1.315
Vin = 12 V, 28 V
1.30
1.285
1.27
1.255
1.24
−40 −25 −10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
Figure 7. Transconductance vs. Input Voltage and
Temperature
90
85
80
Vin = 12 V, 28 V
75
Vin = 5 V
70
65
60
−40 −25 −10
5 20 35 50 65 80
TEMPERATURE (°C)
95 110 125
Figure 4. Switching Frequency vs. Input Voltage
and Temperature
3.0
2.8
Vin = 28 V
2.6
2.4
2.2
2.0
Vin = 5 V
1.8
Vin = 12 V
1.6
1.4
1.2
1.0
−40 −25 −10 5
20 35 50 65 80 95 110 125
TEMPERATURE (°C)
Figure 6. Supply Current (Disabled) vs. Input
Voltage and Temperature
4.4
4.3
UVLO Rising Threshold
4.2
4.1
4.0
UVLO Falling Threshold
3.9
−40 −25 −10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
Figure 8. Input Undervoltage Lockout vs.
Temperature
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