LT1763(1999) Просмотр технического описания (PDF) - Linear Technology
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LT1763 Datasheet PDF : 16 Pages
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LT1763 Series
TYPICAL PERFORMANCE CHARACTERISTICS
SHDN Pin Threshold
(On-to-Off)
1.0
0.9 IL = 1mA
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1763 G26
SHDN Pin Threshold
(Off-to-On)
1.0
0.9
0.8
0.7
IL = 500mA
0.6
0.5
IL = 1mA
0.4
0.3
0.2
0.1
0
–50 –25
0 25 50 75 100 125
TEMPERATURE (°C)
1763 G27
SHDN Pin Input Current
1.6
VSHDN = 20V
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1763 G29
ADJ Pin Bias Current
140
120
100
80
60
40
20
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1763 G30
SHDN Pin Input Current
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0 1 2 3 4 5 6 7 8 9 10
SHDN PIN VOLTAGE (V)
1763 G28
Current Limit
1.0
0.9 VOUT = 0V
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
01 2 34 5
INPUT VOLTAGE (V)
67
1763 G31
Current Limit
1.2
1.0
VIN = 7
VOUT = 0V
0.8
0.6
0.4
0.2
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1763 G32
Reverse Output Current
100
90
TJ = 25°C, VIN = 0V
CURRENT FLOWS
80 INTO OUTPUT PIN
VOUT = VADJ (LT1763)
70
LT1763
60
LT1763-1.8
50 LT1763-2.5
40 LT1763-3
LT1763-3.3
30
LT1763-1.5
20
10
LT1763-5
0
0 1 2 3 4 5 6 7 8 9 10
OUTPUT VOLTAGE (V)
1763 G33
8
Reverse Output Current
20
VIN = 0V, VOUT = 1.22V (LT1763)
18 VOUT = 1.5V (LT1763-1.5)
16
VOUT = 1.8V (LT1763-1.8)
VOUT = 2.5V (LT1763-2.5)
14 VOUT = 3V (LT1763-3)
VOUT = 3.3V (LT1763-3.3)
12 VOUT = 5V (LT1763-5)
10
8
LT1763-1.5/-1.8/
6
-2.5/-3/-3.3/-5
4
LT1763
2
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1763 G34
1763fa
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