National Semiconductor LM1575 Series Manual page 17

Simple switcher 1a step-down voltage regulator
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Inductor Value Selection Guides
Inductor
Code
L100
L150
L220
L330
L470
L680
H150
H220
H330
H470
H680
H1000
H1500
H2200
Note 15: Schott Corp., (612) 475-1173, 1000 Parkers Lake Rd., Wayzata, MN 55391.
Note 16: Pulse Engineering, (619) 674-8100, P.O. Box 12236, San Diego, CA 92112.
Note 17: Renco Electronics Inc., (516) 586-5566, 60 Jeffryn Blvd. East, Deer Park, NY 11729.
(For Continuous Mode Operation) (Continued)
V
Schottky
R
1A
20V 1N5817
1N5820
MBR120P
MBR320
SR102
SR302
30V 1N5818
1N5821
MBR130P
MBR330
11DQ03
31DQ03
SR103
SR303
40V 1N5819
IN5822
MBR140P
MBR340
11DQ04
31DQ04
SR104
SR304
50V MBR150
MBR350
11DQ05
31DQ05
SR105
SR305
60V MBR160
MBR360
11DQ06
31DQ06
SR106
SR306
FIGURE 8. Diode Selection Guide
Inductor
Value
100 µH
150 µH
220 µH
330 µH
470 µH
680 µH
150 µH
220 µH
330 µH
470 µH
680 µH
1000 µH
1500 µH
2200 µH
FIGURE 9. Inductor Selection by Manufacturer's Part Number
Fast Recovery
3A
1A
The following
The following
diodes are all
diodes are all
rated to 100V
rated to 100V
11DF1
MUR110
HER102
Schott
Pulse Eng.
(Note 15)
(Note 16)
67127000
PE-92108
67127010
PE-53113
67127020
PE-52626
67127030
PE-52627
67127040
PE-53114
67127050
PE-52629
67127060
PE-53115
67127070
PE-53116
67127080
PE-53117
67127090
PE-53118
67127100
PE-53119
67127110
PE-53120
67127120
PE-53121
67127130
PE-53122
17
3A
31DF1
MURD310
HER302
Renco
(Note 17)
RL2444
RL1954
RL1953
RL1952
RL1951
RL1950
RL2445
RL2446
RL2447
RL1961
RL1960
RL1959
RL1958
RL2448
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