LM2597N-ADJ National Semiconductor, LM2597N-ADJ Datasheet - Page 2
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LM2597N-ADJ
Manufacturer Part Number
LM2597N-ADJ
Description
IC, STEP-DOWN VOLTAGE REGULATOR, 8-DIP
Manufacturer
National Semiconductor
Datasheet
1.LM2597M-3.3NOPB.pdf
(34 pages)
Specifications of LM2597N-ADJ
Input Voltage
40V
Output Current
500mA
No. Of Outputs
1
No. Of Pins
8
Operating Temperature Range
-40°C To +125°C
Mounting Type
Through Hole
Output Voltage Min
1.23V
Leaded Process Compatible
No
Rohs Compliant
No
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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Symbol
SYSTEM PARAMETERS (Note 6) Test Circuit Figure 12
V
Symbol
SYSTEM PARAMETERS (Note 6) Test Circuit Figure 12
V
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 (V
SD /SS Pin Input Voltage (Note 2)
Delay Pin Voltage (Note 2)
Flag Pin Voltage
Bias Supply Voltage (V
Feedback Pin Voltage
Output Voltage to Ground
Power Dissipation
Storage Temperature Range
LM2597/LM2597HV-3.3
Electrical Characteristics
Specifications with standard type face are for T
ture Range.V
OUT
LM2597/LM2597HV-5.0
Electrical Characteristics
Specifications with standard type face are for T
ture Range.V
OUT
(Steady State)
Output Voltage
Efficiency
Output Voltage
Efficiency
LM2597HV
INmax
INmax
Parameter
LM2597
Parameter
=40V for the LM2597 and 60V for the LM2597HV
=40V for the LM2597 and 60V for the LM2597HV
BS
)
IN
)
4.75V
V
7V
V
IN
IN
= 12V, I
= 12V, I
V
IN
V
IN
−65˚C to +150˚C
Internally limited
−0.3
LOAD
−0.3
−0.3
V
LOAD
(Note 1)
J
J
INmax
V
= 25˚C, and those with boldface type apply over full Operating Tempera-
= 25˚C, and those with boldface type apply over full Operating Tempera-
INmax
Conditions
Conditions
= 0.5A
V +25V
= 0.5A
, 0.1A
V 45V
V 30V
, 0.1A
1.5V
45V
60V
−1V
6V
I
LOAD
2
I
LOAD
ESD Susceptibility
Lead Temperature
Maximum Junction Temperature
Operating Conditions
Temperature Range
Supply Voltage
0.5A
Human Body Model (Note 3)
M8 Package
N Package (Soldering, 10 sec.)
0.5A
Vapor Phase (60 sec.)
Infrared (15 sec.)
LM2597HV
LM2597
(Note 4)
(Note 4)
LM2597/LM2597HV-5.0
Typ
82
LM2597/LM2597HV-3.3
Typ
5
3.3
80
4.800/4.750
5.200/5.250
3.168/3.135
3.432/3.465
(Note 5)
(Note 5)
Limit
Limit
−40˚C
4.5V to 40V
4.5V to 60V
T
J
(Limits)
(Limits)
V(max)
V(max)
V(min)
V(min)
Units
+215˚C
+220˚C
+260˚C
+150˚C
+125˚C
Units
%
%
V
V
2 kV