LT1933HS6 View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LT1933HS6 Datasheet PDF : 20 Pages
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LT1933
TYPICAL PERFORMANCE CHARACTERISTICS
Efficiency, VOUT = 5V
100
TA = 25°C
VOUT = 5V
90
VIN = 12V
80
VIN = 24V
70
D1 = MBRM140
60
L1 = Toko D53LCB 33μH
0 100 200 300 400 500 600
LOAD CURRENT (mA)
1933 G01
Efficiency, VOUT = 3.3V
100
TA = 25°C
VOUT = 3.3V
90
VIN = 5V
VIN = 12V
80
VIN = 24V
70
D1 = MBRM140
60
L1 = Toko D53LCB 22μH
0 100 200 300 400 500 600
LOAD CURRENT (mA)
1933 G02
Switch Current Limit
1200
TA = 25°C
1000
TYPICAL
800
MINIMUM
600
400
200
0
0
20
40
60
80 100
DUTY CYCLE (%)
1933 G03
Maximum Load Current
800
TA = 25°C
VOUT = 5V
700
L = 33μH
600
L = 22μH
500
400
0
5 10 15 20 25 30
INPUT VOLTAGE (V)
1933 G04
Maximum Load Current
800
TA = 25°C
VOUT = 3.3V
700
L = 22μH
600
L = 15μH
500
400
0
5 10 15 20 25 30
INPUT VOLTAGE (V)
1933 G05
Switch Voltage Drop
600
500
TA = 25°C
400
TA = 85°C
300
TA = –40°C
200
100
0
0 0.1 0.2 0.3 0.4 0.5 0.6
SWITCH CURRENT (A)
1933 G06
Feedback Voltage
1.260
1.255
1.250
1.245
1.240
1.235
1.230
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
1933 G07
4
Undervoltage Lockout
3.8
Switching Frequency
600
3.6
550
3.4
500
3.2
450
3.0
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
1933 G08
400
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
1933 G09
1933fe
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