LT1105C View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LT1105C' PDF : 32 Pages View PDF
LT1103/LT1105
TYPICAL PERFORMANCE CHARACTERISTICS
Quiescent Supply Current vs
Temperature
22
21
20
30V
19
18
17
16
8V
15
14
13
12
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
LT1103 G04
VIN Start-Up Threshold vs
Temperature
17.5
17.0
16.5
16.0
15.5
15.0
14.5
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
LT1103 G07
Preset Switch Maximum Duty
Cycle vs Temperature
75
COSC = 1000pF
72
69
66
63
60
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
LT1103 G10
Shutdown Supply Current vs
Input Voltage
500
450
400
350
300
250
200
VC = 75mV
150
100
VC = 0
50
0
0 5 10 15 20 25 30 35
INPUT VOLTAGE (V)
LT1103 G05
VIN Shutdown Threshold vs
Temperature
8.0
7.7
7.4
7.1
6.8
6.5
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
LT1103 G08
Switch Oscillator Frequency vs
Capacitance
1000
100
10
100
1000
CAPACITANCE (pF)
10000
LT1103 G11
Shutdown Supply Current vs
VC Voltage
500
450
400
350
300
250
25°C 125°C
200
150
100
–55°C
50
0
0 20 40 60 80 100 120 140 160 180 200
VC (mV)
LT1103 G06
Output Switch Frequency vs
Temperature
45
COSC = 1000pF
43
41
39
37
35
–75 –50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
LT1103 G09
Overvoltage Lockout Threshold vs
Temperature
3.0
2.8
2.6
2.4
2.2
2.0
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
LT1103 G12
6
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