参数资料
型号: LM2576
厂商: ON SEMICONDUCTOR
英文描述: 3.0 A, 15 V, Step-Down Switching Regulator(3.0A,15V,降压型开关稳压器)
中文描述: 3.0甲,15 V的,降压型开关稳压器(3.0A的,15V的,降压型开关稳压器)
文件页数: 5/28页
文件大小: 275K
代理商: LM2576
LM2576
http://onsemi.com
13
ET
,
VOL
TAGE
TIME
(V
s)μ
100
80
90
3.0
2.5
1.5
0.8
0.5
0.4
0.6
1.0
2.0
5.0
60
40
20
15
10
8.0
7.0
6.0
MAXIMUM
INPUT
VOL
TAGE
(V)
MAXIMUM
INPUT
VOL
TAGE
(V)
IL, MAXIMUM LOAD CURRENT (A)
MAXIMUM
INPUT
VOL
TAGE
(V)
IL, MAXIMUM LOAD CURRENT (A)
MAXIMUM
INPUT
VOL
TAGE
(V)
Figure 18. LM25763.3
IL, MAXIMUM LOAD CURRENT (A)
Figure 19. LM25765
L680
Figure 20. LM257612
Figure 21. LM257615
Figure 22. LM2576ADJ
LM2576 Series Buck Regulator Design Procedures (continued)
Indicator Value Selection Guide (For Continuous Mode Operation)
60
40
20
15
12
10
9.0
8.0
7.0
60
40
35
25
20
18
30
16
15
14
60
40
30
25
22
20
19
18
17
300
70
60
50
45
40
35
30
25
20
3.0
2.5
1.5
0.8
0.5
0.3
3.0
0.8
0.6
0.5
0.4
0.3
3.0
2.0
1.5
0.5
0.3
L330
L470
L150
L220
0.4
0.6
1.0
2.0
L100
L68
L47
H470
H1000
H680
H220
H330
H150
L680
L330
L470
L150
L220
L100
L68
L47
1.2
H470
H1000
H680
H220
H330
H150
L680
L330
L470
L150
L220
L100
L68
H1500
1.0
1.5
2.0
2.5
H470
H1000
H680
H220
H330
H150
L680
L330
L150
L220
L100
L68
H1500
3.0
0.8
0.6
0.5
0.4
0.3
1.0
1.5
2.0
2.5
35
L470
H680
H220
H330
H150
L680
L330
L150
L220
L100
L68
H1500
L470
H2000
L47
H470
H1000
150
200
250
0.4
0.6
0.8 1.0
2.5
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