LT1105 LINER [Linear Technology], LT1105 Datasheet - Page 8

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

LT1103/LT1105
TYPICAL PERFORMANCE CHARACTERISTICS
8
25000
15000
20000
10000
5000
4.44
4.60
4.56
4.52
4.48
4.40
130
110
90
70
50
30
–75
–75
–75
Feedback Threshold vs
Temperature
Error Amplifier Transconductance
vs Temperature
15V Gate Bias Short-Circuit
Current vs Temperature
–50
–50
–50
–25
–25
–25
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
0
TEMPERATURE ( C)
25
25
25
50
50
50
75
75
75
100
100
100
W
125
125
125
LT1103 G25
LT1103 G28
LT1103 G22
150
150
150
U
175
175
175
0.020
0.018
0.016
0.014
0.012
0.010
0.008
0.006
0.002
0.004
0
0.1
10.5
10.2
Error Amplifier Transconductance
and Phase vs Frequency
9.3
9.9
9.6
9.0
20
16
12
8
4
0
–75
–75
Low Switch Drive Lockout
Threshold vs Temperature
FB Input Bias Current vs
Temperature (V
–50
–50
PHASE
1
–25
–25
gm
FREQUENCY (kHz)
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
25
25
10
C
50
50
= 1V)
75
75
PHASE
100
100
100
125
LT1103 G29
125
gm
LT1103 G23
LT1103 G26
1000
150
150
200
160
140
120
100
80
20
180
60
40
0
175
175
2500
2000
1500
1000
20.0
19.5
19.0
18.5
18.0
17.5
17.0
500
14
13
12
11
10
–75
9
8
7
–75
–75
High Switch Drive Lockout
Threshold vs Temperature
Change in FB Input Bias Current
with Change in V
(V
Error Amplifier Voltage Gain vs
Temperature
–50
–50
C
–50
= 1V to 4V)
–25
–25
–25 0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
0
TEMPERATURE (°C)
25
25
25
50
50
50
C
vs Temperature
75
75
75
100
100
100
125
125
125
LT1103 G24
150
LT1103 G30
LT1103 G27
150
150 175
175
175