LM2574M-12/NOPB National Semiconductor, LM2574M-12/NOPB Datasheet - Page 11

• Manufacturer Part Number: LM2574M-12/NOPB
• Description: IC REG SIMPLE SWITCHER 14-SOIC
• Manufacturer: National Semiconductor
• Series: SIMPLE SWITCHER®r
• Type: Step-Down (Buck)r

Specifications of LM2574M-12/NOPB

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 12V
• Current - Output: 500mA
• Frequency - Switching: 52kHz
• Voltage - Input: 4 ~ 40 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 14-SOIC (7.5mm Width)
• Power - Output: 750mW
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: *LM2574M-12; *LM2574M-12/NOPB; LM2574M-12

Test Circuit and Layout Guidelines
(Continued)
Inductor
1000 µH
1500 µH
2200 µH
Value
100 µH
150 µH
220 µH
330 µH
470 µH
680 µH
68 µH
FIGURE 3. Inductor Selection by
Pulse Eng.
Manufacturer’s Part Number
(Note 1)
52625
52626
52627
52628
52629
52631
*
*
*
*
RL-1284-68-43
RL-1284-100-43
RL-1284-150-43
RL-1284-220-43
RL-1284-330-43
RL-1284-470-43
RL-1283-680-43
RL-1283-1000-43
RL-1283-1500-43
RL-1283-2200-43
(Note 2)
Renco
NP5918/5919
NP5920/5921
(Note 3)
NP5915
NP5916
NP5917
NP5922
NP5923
NPI
*
*
*
11
U.S. Source
Note 1: Pulse Engineering,
P.O. Box 12236, San Diego, CA 92112
Note 2: Renco Electronics Inc.,
60 Jeffryn Blvd. East, Deer Park, NY 11729
*
European Source
Note 3: NPI/APC
47 Riverside, Medway City Estate
Strood, Rochester, Kent
*
Contact Manufacturer
Contact Manufacturer
ME2 4DP.
[phone]
[phone]
[phone]
UK
www.national.com