LT3669 View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LT3669 Datasheet PDF : 40 Pages
| |||
LT3669/LT3669-2
TYPICAL PERFORMANCE CHARACTERISTICS
Power-On Reset Threshold
94.O
93.5
FBLDO
93.0
FBOUT
92.5
92.0
91.5
91.0
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
36692 G10
Reset Timeout Period
13.0
CPOR = 100nF
12.9
12.8
12.7
12.6
12.5
12.4
12.3
12.2
12.1
12.0
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
36692 G11
Reset Timeout Period
1000
100
10
1
0.1
0.01
0.01
0.1 1 10 100 1000 10000
CPOR PIN CAPACITANCE, CPOR (nF)
36692 G12
Switch Current Limit
700
LT3669-2
600
500
400
300
LT3669
200
100
0
0 10 20 30 40 50 60 70 80 90 100
DUTY CYCLE (%)
36692 G13
Switch Current Limits
700
600
LT3669-2
500
400
300
LT3669
200
100
0
–50
CURRENT LIMIT DC = 0%
CURRENT LIMIT DC = 100%
CATCH DIODE CURRENT LIMIT
–25 0 25 50 75 100 125 150
TEMPERATURE (°C)
36692 G14
BST Pin Current
10
9
8
7
6
5
4
3
2
1
0
0 50 100 150 200 250 300
SWITCH CURRENT (mA)
36692 G16
Boost Diode Forward Voltage
1.2
1.0
0.8
0.6
0.4
0.2
0
0
50
100
150
200
BOOST DIODE CURRENT (mA)
36692 G17
8
For more information www.linear.com/LT3669
Switch Voltage Drop
450
400
350
300
250
200
150
100
50
0
0 50 100 150 200 250 300
SWITCH CURRENT (mA)
36692 G15
Reverse-Protection Diode
Forward Voltage
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0 50 100 150 200 250 300
DIODE CURRENT (mA)
36692 G18
3669fa
Share Link: 