LM2574M-ADJ/NOPB National Semiconductor, LM2574M-ADJ/NOPB Datasheet - Page 12
![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
www.national.com
Application Note
*Tab of device attached to topside copper
Layout
14
15
16
(Continued)
0.284
0.392
0.5
TABLE 1. θ
Copper Area
JA
Different Heatsink Area (Continued)
0.284
0.392
0.5
12
83
75
70
Thermal Resistance
61
55
53