参数资料
型号: LM2585-5.0MDC
厂商: NATIONAL SEMICONDUCTOR CORP
元件分类: 稳压器
英文描述: 7 A SWITCHING REGULATOR, 125 kHz SWITCHING FREQ-MAX, UUC
封装: DIE
文件页数: 6/29页
文件大小: 708K
代理商: LM2585-5.0MDC
Typical Flyback Regulator Applications (Continued)
Transformer Selection (T)
Figure 13 lists the standard transformers available for flyback regulator applications. Included in the table are the turns ratio(s) for
each transformer, as well as the output voltages, input voltage ranges, and the maximum load currents for each circuit.
Applications
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Figure 12
Transformers
T7
T6
T5
V
IN
4V–6V
8V–16V
4V–6V
18V–36V
V
OUT1
3.3V
5V
12V
5V
I
OUT1 (Max)
1.4A
1A
0.8A
0.15A
0.6A
1.8A
N
1
1.2
0.5
V
OUT2
12V
I
OUT2 (Max)
0.15A
0.6A
0.25A
N
2
1.2
1.15
V
OUT3
12V
I
OUT3 (Max)
0.25A
N
3
1.15
FIGURE 13. Transformer Selection Table
Trans-
former
Type
Manufacturers’ Part Numbers
Coilcraft
Pulse
Renco
Schott
(Note 15)
(Note 16)
(Note 17)
(Note 18)
Surface Mount
T5
Q4338-B
Q4437-B
PE-68413
RL-5532
67140890
T6
Q4339-B
Q4438-B
PE-68414
RL-5533
67140900
T7
S6000-A
S6057-A
PE-68482
RL-5751
26606
Note 15: Coilcraft Inc.
Phone: (800) 322-2645
1102 Silver Lake Road, Cary, IL 60013:
Fax: (708) 639-1469
Note 16: Pulse Engineering Inc.
Phone: (619) 674-8100
12220 World Trade Drive, San Diego, CA 92128:
Fax: (619) 674-8262
Note 17: Renco Electronics Inc.
Phone: (800) 645-5828
60 Jeffryn Blvd. East, Deer Park, NY 11729:
Fax: (516) 586-5562
Note 18: Schott Corp.
Phone: (612) 475-1173
1000 Parkers Lane Road, Wayzata, MN 55391:
Fax: (612) 475-1786
FIGURE 14. Transformer Manufacturer Guide
LM2585
www.national.com
14
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LM2585-5.0MWC 7 A SWITCHING REGULATOR, 125 kHz SWITCHING FREQ-MAX, UUC
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