LTM4609V Просмотр технического описания (PDF) - Linear Technology
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LTM4609V Datasheet PDF : 28 Pages
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Typical Performance Characteristics (Refer to Figure 18)
LTM4609
Efficiency vs Load Current
6VIN to 12VOUT
100
90
80
70
60
50
40
30
20
10
0
0.01
0.1
1
LOAD CURRENT (A)
BURST
DCM
CCM
10
4609 G01
Efficiency vs Load Current
12VIN to 12VOUT
100
90
80
70
60
50
40
30
20
10
0
0.01
0.1
1
LOAD CURRENT (A)
BURST
DCM
CCM
10
4609 G02
Efficiency vs Load Current
32VIN to 12VOUT
100
90
80
70
60
50
40
30
20
10
0
0.01
SKIP CYCLE
DCM
CCM
0.1
1
10
LOAD CURRENT (A)
100
4609 G03
Efficiency vs Load Current
3.3µH Inductor
100
95
90
85
80
75
12VIN TO 5VOUT
24VIN TO 5VOUT
32VIN TO 5VOUT
70
0 1 2 3 4 5 6 7 8 9 10
LOAD CURRENT (A)
4609 G04
Efficiency vs Load Current
5.6µH Inductor
100
99
98
97
96
95
94
93
92
28VIN to 20VOUT
91
32VIN to 20VOUT
36VIN to 20VOUT
90
012345678
LOAD CURRENT (A)
4609 G05
Efficiency vs Load Current
8µH Inductor
100
99
98
97
96
95
94
93
0
30VIN to 30VOUT
32VIN to 30VOUT
36VIN to 30VOUT
1
2
3
4
5
6
LOAD CURRENT (A)
4609 G06
Efficiency vs Load Current
3.3µH Inductor
100
95
90
85
Transient Response from
6VIN to 12VOUT
IOUT
2A/DIV
VOUT
200mV/DIV
Transient Response from
12VIN to 12VOUT
IOUT
2A/DIV
VOUT
200mV/DIV
80
75
70
0
5VIN to 16VOUT
5VIN to 24VOUT
5VIN to 30VOUT
0.5 1 1.5 2 2.5 3
LOAD CURRENT (A)
4609 G07
200µs/DIV
4609 G08
LOAD STEP: 0A TO 3A AT CCM
OUTPUT CAPS: 4x 22µF CERAMIC CAPS AND
2x 180µF ELECTROLYTIC CAPS
2x 15mΩ SENSING RESISTORS
200µs/DIV
4609 G09
LOAD STEP: 0A TO 3A AT CCM
OUTPUT CAPS: 4x 22µF CERAMIC CAPS AND
2x 180µF ELECTROLYTIC CAPS
2x 15mΩ SENSING RESISTORS
4609ff
For more information www.linear.com/LTM4609
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