LM2574MX-12 National Semiconductor, LM2574MX-12 Datasheet - Page 4
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LM2574MX-12
Manufacturer Part Number
LM2574MX-12
Description
Conv DC-DC Single Inv/Step Down 4V to 40V 14-Pin SOIC W T/R
Manufacturer
National Semiconductor
Type
Inverting|Step Downr
Datasheet
1.LM2574MX-ADJNOPB.pdf
(24 pages)
Specifications of LM2574MX-12
Package
14SOIC W
Number Of Outputs
1
Minimum Input Voltage
4 V
Maximum Input Voltage
40 V
Switching Frequency
58 KHz
Operating Supply Voltage
40(Max) V
Maximum Output Current
0.5 A
Output Type
Fixed
Output Voltage
12 V
Switching Regulator
Yes
Efficiency
88(Typ) %
Operating Temperature
-40 to 125 °C
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LM2574MX-12/NOPB
Manufacturer:
NS
Quantity:
16 394
www.national.com
SYSTEM PARAMETERS (Note 3) Test Circuit Figure 2
V
V
V
SYSTEM PARAMETERS (Note 3) Test Circuit Figure 2
V
V
V
SYSTEM PARAMETERS (Note 3) Test Circuit Figure 2
V
Symbol
Symbol
Symbol
LM2574-12, LM2574HV-12
Electrical Characteristics
Specifications with standard type face are for T
ture Range.
LM2574-15, LM2574HV-15
Electrical Characteristics
Specifications with standard type face are for T
ture Range.
LM2574-ADJ, LM2574HV-ADJ
Electrical Characteristics
Specifications with standard type face are for T
ture Range. Unless otherwise specified, V
OUT
OUT
OUT
OUT
OUT
OUT
FB
Output Voltage
Output Voltage
LM2574
Output Voltage
LM2574HV
Efficiency
Output Voltage
Output Voltage
LM2574
Output Voltage
LM2574HV
Efficiency
Feedback Voltage
Parameter
Parameter
Parameter
V
15V
15V
V
V
18V
18V
V
V
IN
IN
IN
IN
IN
= 25V, I
= 15V, I
= 30V, I
= 18V, I
= 12V, I
V
V
V
V
IN
IN
IN
IN
IN
= 12V, I
LOAD
LOAD
LOAD
LOAD
LOAD
40V, 0.1A
60V, 0.1A
40V, 0.1A
60V, 0.1A
J
J
J
= 25˚C, and those with boldface type apply over full Operating Tempera-
= 25˚C, and those with boldface type apply over full Operating Tempera-
= 25˚C, and those with boldface type apply over full Operating Tempera-
Conditions
Conditions
Conditions
= 100 mA
= 0.5A
= 100 mA
= 0.5A
= 100 mA
LOAD
= 100 mA.
I
I
I
I
LOAD
LOAD
LOAD
LOAD
4
0.5A
0.5A
0.5A
0.5A
1.230
Typ
Typ
Typ
12
12
12
88
15
15
15
88
LM2574HV-ADJ
LM2574HV-12
LM2574HV-15
LM2574-ADJ
LM2574-12
LM2574-15
11.52/11.40
12.48/12.60
11.52/11.40
12.54/12.66
14.40/14.25
15.60/15.75
14.40/14.25
15.68/15.83
(Note 2)
(Note 2)
(Note 2)
11.76
12.24
14.70
15.30
1.217
1.243
Limit
Limit
Limit
(Limits)
(Limits)
(Limits)
V(Max)
V(Max)
V(Max)
V(Max)
V(Max)
V(Max)
V(Max)
V(Min)
V(Min)
V(Min)
V(Min)
V(Min)
V(Min)
V(Min)
Units
Units
Units
%
%
V
V
V
V
V