LM2596 Просмотр технического описания (PDF) - Estek Electronics Co. Ltd
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LM2596 Datasheet PDF : 13 Pages
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LM2596
LM2596 SERIES BUCK REGULATOR DESING PROCEDURE (ADJUSTABLE OUTPUT)
Through Hole Output Capacitor
Surface Mount Output Capacitor
Output
Voltage (V)
2
Panasonic HFQ
Series
(F/V)
820/35
Nichicon PL Series
(F/V)
820/35
Feedforward
capacitor
33 nF
AVX TPS Series
(F/V)
330/6.3
Sprague 595D
Series
(F/V)
470/4
Feedforward
Capacitor
33 nF
4
560/35
470/35
10 nF
330/6.3
390/6.3
10 nF
6
470/25
470/25
3.3 nF
220/10
330/10
3.3 nF
9
330/25
330/25
1.5 nF
100/16
180/16
1.5 nF
12
330/25
330/25
1 nF
100/16
180/16
1 nF
15
220/35
220/35
680 pF
68/20
120/20
680 pF
24
220/35
150/35
560 pF
33/25
33/25
220 pF
28
100/50
100/50
390 pF
10/35
15/50
220 pF
Figure 3. Output Capacitor and Feedforward Capacitor Selection Table
LM2596 SERIES BUCK REGULATOR DESIGN PROCEDURE
Inductor Value Selection Guides (For Continuous Mode Operation)
40V
L29
20V
L21
10V
8V
L22
7V
L30
L31
L40
L32
L33
40V L27
30V
25V
20V L28
19V
18V
L29
17V
L23
L34
6V
L24
16V L21
15V L22
L43
L36
L37
L38
L30
L39
L31
L40
L32
L33
L15
L25
5V
L16
0.6 0.8 1.0 1.5 2.0 2.5
3.0
Figure 4. LM2596-3.3
L23
14V
L24
L34
0.6 0.8 1.0 1.5 2.0 2.5
3.0
MAXIMUMFiLgOurAeD6. CLMUR25R9E6N-1T2 (A)
BEIJING ESTEK ELECTRONICS CO.,LTD
11
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