LM2574M-ADJ/NOPB National Semiconductor, LM2574M-ADJ/NOPB Datasheet - Page 11
![IC REG SW ADJ 500MA STPDN 14SOIC](/photos/6/60/66091/pkg_m14b_sml.jpg)
LM2574M-ADJ/NOPB
Manufacturer Part Number
LM2574M-ADJ/NOPB
Description
IC REG SW ADJ 500MA STPDN 14SOIC
Manufacturer
National Semiconductor
Series
SIMPLE SWITCHER®r
Type
Step-Down (Buck)r
Specifications of LM2574M-ADJ/NOPB
Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
1.23 ~ 37 V
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
Primary Input Voltage
40V
No. Of Outputs
1
Output Voltage
37V
Output Current
500mA
No. Of Pins
14
Operating Temperature Range
-40°C To +125°C
Current Rating
0.5A
Filter Terminals
SMD
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
*LM2574M-ADJ
*LM2574M-ADJ/NOPB
LM2574M-ADJ
*LM2574M-ADJ/NOPB
LM2574M-ADJ
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.
+44 (0) 634 290588
(619) 674-8100
(516) 586-5566
UK
www.national.com