LT3640IFE 查看數據表（PDF） - Linear Technology
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LT3640IFE Datasheet PDF : 24 Pages
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LT3640
Typical Performance Characteristics TA = 25°C, unless otherwise noted.
HV Channel Efficiency
(2MHz, VOUT1 = 3.3V)
90
85
VIN = 12V
VIN = 16V
80
VIN = 24V
75
HV Channel Efficiency
(2MHz, VOUT1 = 5V)
90
VIN = 12V
85
VIN = 24V VIN = 16V
80
75
LV Channel Efficiency
(2MHz, VOUT2 = 1.2V)
90
85
VIN2 = 3.3V
80
VIN2 = 5V
75
70
0
0.2 0.4 0.6 0.8 1.0 1.2
VOUT1 CURRENT (A)
3640 G01
LV Channel Efficiency
(2MHz, VOUT2 = 1.8V)
90
VIN2 = 3.3V
85
VIN2 = 5V
80
75
70
0
0.2 0.4 0.6
VOUT2 CURRENT (A)
0.8 1.0
3640 G04
70
0
0.2 0.4 0.6 0.8 1.0 1.2
VOUT1 CURRENT (A)
3640 G02
Quiescent Current vs VIN
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
0
10
20
30
VIN VOLTAGE (V)
40
3640 G05
70
0
0.2 0.4 0.6
VOUT2 CURRENT (A)
0.8
1.0
3640 G03
Quiescent Current vs Temperature
350
300
250
200
150
100
50
0
–50
0
50
100
TEMPERATURE (°C)
150
3640 G06
FB1 Voltage vs Temperature
1.40
1.35
1.30
REGULATION
1.25
1.20
RST1 THRESHOLD
1.15
1.10
1.05
1.00
–50
0
50
100
TEMPERATURE (°C)
150
3640 G07
FB1 Voltage vs SS1
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
0.5
1.0
1.5
SS1 VOLTAGE (V)
2.0
3640 G08
FB2 Voltage vs Temperature
0.70
0.65
REGULATION
0.60
RST2 THRESHOLD
0.55
0.50
0.45
–50
0
50
100
TEMPERATURE (°C)
150
3640 G09
3640f
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