MP1499 – 16V/5A PEAK SYNCHRONOUS STEP-DOWN CONVERTER
TYPICAL PERFORMANCE CHARACTERISTICS
(continued)
Performance waveforms are tested on the evaluation board of the Design Example section.
V
IN
= 12V, V
OUT
= 3.3V, L = 3.3µH, T
A
= 25°C, unless otherwise noted.
100
95
90
85
80
75
70
65
60
55
50
0.0
1.0
2.0
3.0
4.0
5.0
V
IN
=12V
V
IN
=16V
V
IN
=5V
100
95
90
85
80
75
70
65
60
55
50
0.0
1.0
2.0
3.0
4.0
5.0
V
IN
=16V
V
IN
=12V
V
IN
=5V
100
95
90
85
80
75
70
65
60
55
50
0.0
1.0
2.0
3.0
4.0
5.0
V
IN
=16V
V
IN
=12V
V
IN
=5V
OUTPUT CURRENT (A)
OUTPUT CURRENT (A)
OUTPUT CURRENT (A)
Case Temperature Rise
vs. Output Current
100
95
90
85
80
75
70
65
60
55
50
0.0
1.0
2.0
3.0
4.0
5.0
V
IN
=16V
V
IN
=5V
V
IN
=12V
100
95
90
85
80
75
70
65
60
55
50
0.0
1.0
2.0
3.0
4.0
5.0
V
IN
=12V
V
IN
=16V
V
IN
=6.5V
30
20
10
0
0
1
2
3
V
OUT
=5V
V
OUT
=1.2V
4
5
50
40
V
OUT
=3.3V
V
IN
=12V, I
OUT
=0A-5A, 4 layers PCB,
Size: 6.5cmx6.5cm
60
OUTPUT CURRENT (A)
OUTPUT CURRENT (A)
OUTPUT CURRENT (A)
Case Temperature Rise
vs. Output Current
80
70
60
50
40
30
20
10
0
0
1
2
3
4
5
V
OUT
=1.2V
V
OUT
=3.3V
V
IN
=5V, I
OUT
=0A-5A, 4 layers PCB,
Size: 6.5cmx6.5cm
6
6
V
IN
=12V
V
OUT
=1.8V
OUTPUT CURRENT (A)
OUTPUT CURRENT (A)
5
4
3
V
IN
=5V
2
1
0
0.0
1.0
2.0
3.0
5
4
3
2
1
0
-40-30-20-10 0 10 20 30 40 50 60 70
V
OUT
=3.3V
V
OUT
=5V
4.0
5.0
6.0
OUTPUT CURRENT (A)
OUTPUT VOLTAGE (V)
MP1499 Rev. 1.0
7/26/2012
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5
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