LM2587S-3.3/NOPB National Semiconductor, LM2587S-3.3/NOPB Datasheet - Page 15

• Manufacturer Part Number: LM2587S-3.3/NOPB
• Description: IC REG SIMPLE SWITCHER TO-263-5
• Manufacturer: National Semiconductor
• Series: SIMPLE SWITCHER®r
• Type: Step-Up (Boost), Flyback, Forward Converterr

Specifications of LM2587S-3.3/NOPB

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 3.3V
• Current - Output: 5A
• Frequency - Switching: 100kHz
• Voltage - Input: 4 ~ 40 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: D²Pak, TO-263 (5 leads + tab)
• For Use With: 551011367-061 - BOARD WEBENCH LM2577,LM2585/87LM2587EVAL - EVALUATION BOARD FOR LM2587
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Other names: *LM2587S-3.3; *LM2587S-3.3/NOPB; LM2587S-3.3

Applications
Transformers
V
V
I
N
V
I
N
V
I
N
OUT1
OUT2
OUT3
IN
OUT1
OUT2
OUT3
1
2
3
TRANSFORMER SELECTION (T)
Figure 13
regulator applications. Included in the table are the turns ratio
Note 15: Coilcraft Inc.,:
1102 Silver Lake Road, Cary, IL 60013: Fax: [phone]
Note 16: Pulse Engineering Inc.,: Phone: [phone]
12220 World Trade Drive, San Diego, CA 92128: Fax: [phone]
Note 17: Renco Electronics Inc.,: Phone: [phone]
60 Jeffryn Blvd. East, Deer Park, NY 11729: Fax: [phone]
Note 18: Schott Corp.,: Phone: [phone]
1000 Parkers Lane Road, Wayzata, MN 55391: Fax: [phone]
Transformer
(Max)
(Max)
(Max)
Type
T1
T2
T3
T4
lists the standard transformers available for flyback
Phone: [phone]
(Note
Figure 7
Coilcraft
Q4434-B
Q4337-B
Q4343-B
Q4344-B
4V–6V
3.3V
1.8A
T1
1
15)
FIGURE 14. Transformer Manufacturer Guide
FIGURE 13. Transformer Selection Table
Figure 8
Coilcraft
4V–6V
1.4A
Surface Mount
T1
5V
1
Q4435-B
Q4436-B
—
—
(Note
15)
Manufacturers' Part Numbers
Figure 9
8V–16V
1.2A
12V
15
T1
1
(s) for each transformer, as well as the output voltages, input
voltage ranges, and the maximum load currents for each cir-
cuit.
Pulse
Surface Mount
PE-68411
PE-68412
PE-68421
PE-68422
(Note
Figure 10
4V–6V
−12V
0.3A
0.3A
12V
2.5
2.5
T2
16)
(Note
RL-5530
RL-5531
RL-5534
RL-5535
Renco
Figure 11
18V–36V
−12V
12V
0.8
0.8
T3
1A
1A
17)
67141450
67140860
67140920
67140930
(Note
www.national.com
Figure 12
18V–36V
Schott
−12V
2.5A
0.5A
0.5A
0.35
12V
0.8
0.8
T4
5V
18)