LT1936H Ver la hoja de datos (PDF) - Linear Technology
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LT1936H Datasheet PDF : 20 Pages
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LT1936
TYPICAL PERFORMANCE CHARACTERISTICS
Maximum Load Current
1.8
VOUT = 5V
1.6
L = 15μH
1.4
L = 10μH
1.2
1.0
0
5 10 15 20 25 30
INPUT VOLTAGE (V)
1936 G04
Maximum Load Current
1.8
VOUT = 3.3V
1.6
L = 10μH
1.4
L = 6.8μH
1.2
1.0
0
5 10 15 20 25 30
INPUT VOLTAGE (V)
1936 G05
Switch Voltage Drop
600
500
TA = 85°C
400
TA = 25°C
TA = –45°C
300
200
100
0
0
0.5
1.0
1.5
SWITCH CURRENT (A)
1936 G06
Feedback Voltage
1.210
1.205
1.200
1.195
1.190
1.185
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
1936 G07
Frequency Foldback
700
TA = 25°C
600
500
400
300
200
100
0
0
0.5
1.0
FB PIN VOLTAGE (V)
1.5
1936 G10
4
Undervoltage Lockout
3.8
3.6
3.4
3.2
3.0
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
1936 G08
Soft-Start
3.0
TA = 25°C
DC = 30%
2.5
2.0
1.5
1.0
0.5
0
0
1
2
3
4
SHDN PIN VOLTAGE (V)
1936 G11
Switching Frequency
600
550
500
450
400
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
1936 G09
SHDN Pin Current
200
TA = 25°C
150
100
50
0
0
4
8
12
16
SHDN PIN VOLTAGE (V)
1936 G12
1936fd
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