ncp1550 ON Semiconductor, ncp1550 Datasheet - Page 12

• Manufacturer Part Number: ncp1550
• Description: 600 Khz Pwm/pfm Stepdown Dcdc Controller
• Manufacturer: ON Semiconductor

200
170
140
1.85
1.83
1.81
1.79
1.77
1.75
110
3.35
3.33
3.31
3.29
3.27
3.25
80
50
Figure 33. NCP1550SN33T1 Output Voltage versus
−50
−50
−50
Figure 35. NCP1550SN18T1 Output Voltage versus
Figure 37. NCP1550 EXT “L” Output Current
V
V
EXT
IN
= 5.0 V
−25
−25
−25
= 0.4 V
T
T
T
versus Ambient Temperature
A
A
A
2.5 V
, AMBIENT TEMPERATURE (°C)
, AMBIENT TEMPERATURE (°C)
, AMBIENT TEMPERATURE (°C)
Ambient Temperature
Ambient Temperature
0
0
0
25
25
25
3.3 V
V
V
IN
IN
= 5.0 V
50
= 5.0 V
50
50
1.8 V
75
75
75
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NCP1550
100
100
100
12
−100
2.55
2.53
2.51
2.49
2.47
2.45
−40
−50
−60
−70
−80
−90
3.5
3.0
2.5
2.0
1.5
−50
−50
−50
Figure 36. NCP1550 EXT “H” Output Current
Figure 34. NCP1550SN25T1 Output Voltage
V
V
IN
Figure 38. NCP1550 Input Current into
−25
−25
OUT
−25
= 5.0 V
2.5 V
versus Ambient Temperature
T
T
versus Ambient Temperature
T
A
A
A
Pin versus Ambient Temperature
, AMBIENT TEMPERATURE (°C)
, AMBIENT TEMPERATURE (°C)
, AMBIENT TEMPERATURE (°C)
2.5 V
3.3 V
0
0
0
3.3 V
25
25
25
V
V
V
IN
EXT
IN
= 5.0 V
50
50
50
= 5.0 V
1.8 V
= V
1.8 V
IN
− 0.4 V
75
75
75
100
100
100