LM2598S-ADJ National Semiconductor, LM2598S-ADJ Datasheet - Page 3

• Manufacturer Part Number: LM2598S-ADJ
• Description: SIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage Regulator/ with Features
• Manufacturer: National Semiconductor

Symbol
SYSTEM PARAMETERS (Note 6) Test Circuit Figure 1
V
SYSTEM PARAMETERS (Note 6) Test Circuit Figure 1
V
SYSTEM PARAMETERS (Note 6) Test Circuit Figure 1
V
Symbol
Symbol
LM2598-3.3
Electrical Characteristics
Specifications with standard type face are for T
ture Range.
LM2598-5.0
Electrical Characteristics
Specifications with standard type face are for T
ture Range.
LM2598-12
Electrical Characteristics
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
Feedback Pin Voltage
Output Voltage to Ground
Power Dissipation
Storage Temperature Range
OUT
Specifications with standard type face are for T
ture Range.
OUT
OUT
(Steady State)
Output Voltage
Efficiency
Output Voltage
Efficiency
Output Voltage
Efficiency
Parameter
Parameter
Parameter
IN
)
4.75V
V
15V
V
7V
V
IN
IN
IN
= 12V, I
= 25V, I
= 12V, I
V
V
IN
V
IN
−65˚C to +150˚C
−0.3
−0.3
Internally limited
IN
LOAD
40V, 0.1A
J
LOAD
(Note 1)
J
LOAD
J
40V, 0.1A
40V, 0.1A
= 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
V
V
= 1A
= 1A
= 1A
+45V
+25V
1.5V
45V
−1V
6V
I
LOAD
I
LOAD
I
LOAD
3
ESD Susceptibility
Lead Temperature
Maximum Junction Temperature
Operating Conditions
Temperature Range
Supply Voltage
1A
1A
Human Body Model (Note 3)
S Package
T Package (Soldering, 10 sec.)
1A
Vapor Phase (60 sec.)
Infrared (10 sec.)
(Note 4)
(Note 4)
(Note 4)
Typ
Typ
82
12
90
Typ
5
3.3
78
LM2598-5.0
LM2598-12
LM2598-3.3
4.800/4.750
5.200/5.250
11.52/11.40
12.48/12.60
3.168/3.135
3.432/3.465
(Note 5)
(Note 5)
(Note 5)
Limit
Limit
Limit
−25˚C
T
www.national.com
4.5V to 40V
J
(Limits)
(Limits)
(Limits)
V(max)
V(max)
V(max)
V(min)
V(min)
V(min)
Units
Units
+215˚C
+245˚C
+260˚C
+150˚C
+125˚C
Units
%
%
%
V
V
V
2 kV