LM2574MX-12 National Semiconductor, LM2574MX-12 Datasheet - Page 3
![no-image](/images/manufacturer_photos/0/4/469/national_semiconductor_sml.jpg)
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
SYSTEM PARAMETERS (Note 3) Test Circuit Figure 2
V
V
V
SYSTEM PARAMETERS (Note 3) Test Circuit Figure 2
V
V
V
Symbol
Symbol
Specifications with standard type face are for T
ture Range.
Specifications with standard type face are for T
ture Range.
LM2574-3.3, LM2574HV-3.3
Electrical Characteristics
OUT
OUT
OUT
LM2574-5.0, LM2574HV-5.0
Electrical Characteristics
OUT
OUT
OUT
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Maximum Supply Voltage
ON /OFF Pin Input Voltage
Output Voltage to Ground
Minimum ESD Rating
Storage Temperature Range
LM2574
LM2574HV
(Steady State)
(C = 100 pF, R = 1.5 k )
Output Voltage
Output Voltage
LM2574
Output Voltage
LM2574HV
Efficiency
Output Voltage
Output Voltage
LM2574
Output Voltage
LM2574HV
Efficiency
Parameter
Parameter
V
4.75V
4.75V
V
V
7V
7V
V
IN
IN
IN
IN
= 12V, I
= 12V, I
= 12V, I
= 12V, I
V
V
IN
IN
V
V
−0.3V
−65˚C to +150˚C
IN
IN
40V, 0.1A
60V, 0.1A
LOAD
LOAD
LOAD
LOAD
J
J
(Note 1)
= 25˚C, and those with boldface type apply over full Operating Tempera-
40V, 0.1A
60V, 0.1A
= 25˚C, and those with boldface type apply over full Operating Tempera-
Conditions
Conditions
V
= 100 mA
= 0.5A
= 100 mA
= 0.5A
2 kV
+V
45V
63V
−1V
I
I
IN
LOAD
LOAD
I
I
LOAD
LOAD
3
0.5A
0.5A
Lead Temperature
Maximum Junction Temperature
Power Dissipation
Operating Ratings
Temperature Range
Supply Voltage
(Soldering, 10 seconds)
LM2574/LM2574HV
LM2574
LM2574HV
0.5A
0.5A
Typ
Typ
3.3
3.3
3.3
72
77
5
5
5
LM2574HV-3.3
LM2574HV-5.0
LM2574-3.3
LM2574-5.0
3.168/3.135
3.432/3.465
3.168/3.135
3.450/3.482
4.800/4.750
5.200/5.250
4.800/4.750
5.225/5.275
(Note 2)
(Note 2)
3.234
3.366
4.900
5.100
Limit
Limit
−40˚C
Internally Limited
T
www.national.com
J
(Limits)
(Limits)
V(Max)
V(Max)
V(Max)
V(Max)
V(Max)
V(Max)
V(Min)
V(Min)
V(Min)
V(Min)
V(Min)
V(Min)
Units
Units
+125˚C
%
%
V
V
V
V
260˚C
150˚C
40V
60V