LT1303 データシートの表示（PDF） - Linear Technology
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LT1303 Datasheet PDF : 12 Pages
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LT1303/LT1303-5
TYPICAL PERFORMANCE CHARACTERISTICS
Switch On-Time
8
7
6
5
4
3
2
–50 –25 0
25 50
TEMPERATURE (°C)
75 100
LT1303 G10
Quiescent Current
200
SWITCH OFF
190 VIN = 2V
180
170
160
150
140
130
120
110
100
–50 –25 0 25 50
TEMPERATURE (°C)
75 100
LT1303 G13
Transient Response
Figure 1 Circuit
Oscillator Frequency
200
190
180
170
160
150
140
130
120
110
100
–50 –25 0 25 50
TEMPERATURE (°C)
Quiescent Current
500
TA = 25°C
SWITCH OFF
400
75 100
LT1303 G11
Maximum Duty Cycle
100
95
90
85
80
75
70
65
60
55
50
–50 –25 0 25 50
TEMPERATURE (°C)
Switch Current Limit
1200
1100
L = 33µH
VL = 3V
75 100
LT1303 G12
300
1000
200
900
100
800
0
0
2
4
6
8
10
INPUT VOLTAGE (V)
LT1303 G14
Shutdown Pin Response
700
0
2
4
6
8
10
INPUT VOLTAGE (V)
LT1303 G15
Low Battery Detector Transient
Response
VOUT
100mV/DIV
AC COUPLED
5V
VOUT
1V/DIV
VLBO
2V/DIV
200mA
ILOAD 0mA
VIN = 2V
VOUT = 5V
200µs/DIV
VSHDN
5V/DIV
LT1303 G16
RLOAD = 100Ω
VIN = 2V
VOUT = 5V
COUT = 100µF
500µs/DIV
VLBI
VTRIP +10mV
VTRIP –10mV
LT1303 G17
RPULL-UP = 47k
5µs/DIV
LT1303 G18
4
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