LT1105 LINER [Linear Technology], LT1105 Datasheet - Page 9

• Manufacturer Part Number: LT1105
• Description: Offline Switching Regulator
• Manufacturer: LINER [Linear Technology]

TYPICAL PERFOR
350
325
300
275
250
225
175
150
0.9
0.8
0.7
0.6
0.5
0.4
0.3
1.2
1.0
0.8
0.6
0.4
0.2
200
0
–75
–75
–75
Error Amplifier Low Clamp
Voltage vs Temperature
(FB = 4.75V)
Error Amplifier Source Current vs
Temperature
LT1103 Switch Saturation Voltage
vs Temperature
–50
–50
–50
–25
–25
–25
I
I
SW
SW
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
0
TEMPERATURE (°C)
= 0.5A
= 1.5A
25
25
25
50
50
50
75
75
75
100
100
100
W
125
125
125
LT1103 G38
150
LT1103 G34
150
LT1103 G31
A
150
U
175
175
175
CE
C
HARA TERISTICS
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.5
1.3
0.9
0.7
0.5
1.1
1.5
3.0
2.5
2.0
0.5
1.0
–75
0
–75
Error Amplifier Sink Current vs
Temperature
LT1103 V
Duty Cycle
V
vs Temperature
0
C
–50
–50
Switching Threshold Voltage
10
–25
–25
C
–55°C
125°C
25°C
20
SW
0
TEMPERATURE (°C)
0
TEMPERATURE (°C)
DUTY CYCLE (%)
30
25
Current Limit vs
25
50
50
40
75
75
50
100
100
60
125
125
150
LT1103 G32
LT1103 G35
70
LT1103 G39
150
175
175
80
200
160
120
4.5
4.4
4.2
4.1
4.0
4.3
3.0
2.9
2.8
2.5
2.4
2.3
2.2
2.0
2.7
2.6
2.1
80
40
0
–75
–75
–75
Error Amplifier High Clamp
Voltage vs Temperature
(FB = 4V)
LT1103 Output Switch Leakage
Current vs Temperature
LT1103 V
Temperature
–50
–50
DC = 25%
–50
LT1103/LT1105
–25
–25
–25
SW
0
TEMPERATURE (°C)
0
TEMPERATURE (°C)
0
TEMPERATURE (°C)
Current Limit vs
25
25
V
25
SW
50
50
50
= 45V
V
SW
75
75
75
= 15V
100
100
100
125
125
125
LT1103 G33
LT1103 G36
LT1103 G40
150
150
150
9
175
175
175