LM2597M-12/NOPB National Semiconductor, LM2597M-12/NOPB Datasheet - Page 18
![IC REG SIMPLE SWITCHER 8-SOIC](/photos/7/60/76085/lm2597m-12_nopb_sml.jpg)
LM2597M-12/NOPB
Manufacturer Part Number
LM2597M-12/NOPB
Description
IC REG SIMPLE SWITCHER 8-SOIC
Manufacturer
National Semiconductor
Series
SIMPLE SWITCHER®r
Type
Step-Down (Buck)r
Datasheet
1.LM2597M-3.3NOPB.pdf
(34 pages)
Specifications of LM2597M-12/NOPB
Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
12V
Current - Output
500mA
Frequency - Switching
150kHz
Voltage - Input
4.5 ~ 40 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Supply Voltage Range
4.5V To 40V
Termination Type
SMD
Driver Case Style
NSOIC
No. Of Pins
8
Output Voltage Min
1.23V
Voltage Regulator Type
Buck Switching
Rohs Compliant
Yes
Filter Terminals
SMD
Input Voltage Primary Max
40V
Leaded Process Compatible
Yes
No. Of Outputs
1
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power - Output
-
Other names
*LM2597M-12
*LM2597M-12/NOPB
LM2597M-12
*LM2597M-12/NOPB
LM2597M-12
www.national.com
LM2597/LM2597HV Series Buck Regulator Design Procedure
Block Diagram
more
20V
30V
40V
50V
VR
or
MBRS130
MBRS140
10BQ040
10MQ040
MBRS160
10BQ050
10MQ060
MBRS1100
SGL41-60
10MQ090
Schottky
SS16
Surface Mount
All of these diodes are rated to
at least 60V.
Ultra Fast
Recovery
MURS120
10BF10
FIGURE 10. Diode Selection Table
FIGURE 11.
1A Diodes
18
1N5817
SR102
1N5818
SR103
11DQ03
1N5819
SR104
11DQ04
SR105
MBR150
11DQ05
Schottky
MBR160
11DQ10
SB160
All of these diodes are rated to
Through Hole
at least 60V.
Ultra Fast
Recovery
MUR120
HER101
11DF1
(Continued)
DS012440-26