LTM4611IV-PBF Ver la hoja de datos (PDF) - Linear Technology
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LTM4611IV-PBF Datasheet PDF : 28 Pages
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LTM4611
Typical Performance Characteristics
Efficiency vs Load Current at
1.5VIN, Forced Continuous Mode
95
1.2VOUT
1.0VOUT
0.9VOUT
90
0.8VOUT
Efficiency vs Load Current at
1.8VIN, Forced Continuous Mode
95
90
Efficiency vs Load Current at
2.5VIN, Forced Continuous Mode
95
90
85
85
85
80
75
0
3
6
9
12
15
OUTPUT CURRENT (A)
4611 G01
1.5VOUT
80
1.2VOUT
1.0VOUT
0.9VOUT
0.8VOUT
75
0
3
6
9
12
15
OUTPUT CURRENT (A)
4611 G02
80
1.8VOUT
1.0VOUT
1.5VOUT
0.9VOUT
1.2VOUT
0.8VOUT
75
0
3
6
9
12
15
OUTPUT CURRENT (A)
4611 G03
Efficiency vs Load Current at
3.3VIN, Forced Continuous Mode
95
90
85
80
2.5VOUT
1.8VOUT
1.0VOUT
1.5VOUT
0.9VOUT
1.2VOUT
0.8VOUT
75
0
3
6
9
12
15
OUTPUT CURRENT (A)
4611 G04
Efficiency vs Load Current at
5VIN, Forced Continuous Mode
95
90
85
80
3.3VOUT
1.2VOUT
2.5VOUT
1.0VOUT
1.8VOUT
0.9VOUT
1.5VOUT
0.8VOUT
75
0
3
6
9
12
15
OUTPUT CURRENT (A)
4611 G05
Burst Mode Efficiency
95
90
85
3.3VIN TO 1.5VOUT
80
75
70
5VIN TO 1VOUT
65
60
55
50
45
40
35
30
0.1
1
OUTPUT CURRENT (A)
10
4611 G14
Pulse-Skipping Mode Efficiency
1V Transient Response, 3.3VIN
95
90
85
80
75
3.3VIN TO 1.5VOUT
VOUT
50mV/DIV
AC-COUPLED
70
5VIN TO 1VOUT
65
60
ILOAD
5A/DIV
55
50
20µs/DIV
4611 G06
45
VIN = 3.3V, VOUT = 1V, USING DIFF AMP
40
4 s 100µF CERAMIC OUTPUT CAPACITORS
35
CFF = 47pF, CP = NONE
7.5A LOAD STEP AT 7.5A/µs
30
0.1
1
10
OUTPUT CURRENT (A)
4611 G15
1V Transient Response, 5VIN
VOUT
50mV/DIV
AC-COUPLED
ILOAD
5A/DIV
20µs/DIV
4611 G07
VIN = 5V, VOUT = 1V, USING DIFF AMP
4 s 100µF CERAMIC OUTPUT CAPACITORS
CFF = 47pF, CP = NONE
7.5A LOAD STEP AT 7.5A/µs
4611f
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