Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Human Body Model (Note 2)
Lead Temperature
2 kV
S Package
Vapor Phase (60 sec.)
Infrared (10 sec.)
+215˚C
+245˚C
+260˚C
+150˚C
Maximum Supply Voltage
ON /OFF Pin Input Voltage
Feedback Pin Voltage
Output Voltage to Ground
(Steady State)
45V
−0.3 ≤ V ≤ +25V
−0.3 ≤ V ≤+25V
T Package (Soldering, 10 sec.)
Maximum Junction Temperature
−1V
Internally limited
−65˚C to +150˚C
Operating Conditions
Temperature Range
Supply Voltage
Power Dissipation
−40˚C ≤ TJ ≤ +125˚C
Storage Temperature Range
ESD Susceptibility
4.5V to 40V
LM2596-3.3
Electrical Characteristics
Specifications with standard type face are for TJ = 25˚C, and those with boldface type apply over full Operating Tempera-
ture Range
LM2596-3.3
Units
Symbol
Parameter
Conditions
Typ
Limit
(Limits)
(Note 3)
(Note 4)
SYSTEM PARAMETERS (Note 5) Test Circuit Figure 1
VOUT
Output Voltage
Efficiency
4.75V ≤ VIN ≤ 40V, 0.2A ≤ ILOAD ≤ 3A
3.3
73
V
3.168/3.135
3.432/3.465
V(min)
V(max)
%
η
VIN = 12V, ILOAD = 3A
LM2596-5.0
Electrical Characteristics
Specifications with standard type face are for TJ = 25˚C, and those with boldface type apply over full Operating Tempera-
ture Range
LM2596-5.0
Units
Symbol
Parameter
Conditions
Typ
Limit
(Limits)
(Note 3)
(Note 4)
SYSTEM PARAMETERS (Note 5) Test Circuit Figure 1
VOUT
Output Voltage
Efficiency
7V ≤ VIN ≤ 40V, 0.2A ≤ ILOAD ≤ 3A
5.0
80
V
4.800/4.750
5.200/5.250
V(min)
V(max)
%
η
VIN = 12V, ILOAD = 3A
LM2596-12
Electrical Characteristics
Specifications with standard type face are for TJ = 25˚C, and those with boldface type apply over full Operating Tempera-
ture Range
LM2596-12
Units
Symbol
Parameter
Conditions
Typ
Limit
(Limits)
(Note 3)
(Note 4)
SYSTEM PARAMETERS (Note 5) Test Circuit Figure 1
VOUT
Output Voltage
Efficiency
15V ≤ VIN ≤ 40V, 0.2A ≤ ILOAD ≤ 3A
12.0
90
V
11.52/11.40
12.48/12.60
V(min)
V(max)
%
η
VIN = 25V, ILOAD = 3A
3
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