Datasheet

Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Maximum Supply Voltage (V
IN
) 63V
SD /SS Pin Input Voltage (Note 2)
6V
Delay Pin Voltage (Note 2) 1.5V
Flag Pin Voltage −0.3 ≤ V ≤45V
Feedback Pin Voltage −0.3 ≤ V ≤+25V
Output Voltage to Ground
(Steady State) −1V
Power Dissipation Internally limited
Storage Temperature Range −65˚C to +150˚C
ESD Susceptibility
Human Body Model (Note 3) 2 kV
Lead Temperature
S Package
Vapor Phase (60 sec.) +215˚C
Infrared (10 sec.) +245˚C
T Package (Soldering, 10 sec.) +260˚C
Maximum Junction Temperature +150˚C
Operating Conditions
Temperature Range −40˚C ≤ T
J
≤ +125˚C
Supply Voltage 4.5V to 60V
LM2593HV-3.3
Electrical Characteristics
Specifications with standard type face are for T
J
= 25˚C, and those with boldface type apply over full Operating Tempera-
ture Range.
Symbol Parameter Conditions LM2593HV-3.3 Units
(Limits)
Typ Limit
(Note 4) (Note 5)
SYSTEM PARAMETERS (Note 6) Test Circuit
Figure 1
V
OUT
Output Voltage 4.75V ≤ V
IN
≤ 60V, 0.2A ≤ I
LOAD
≤ 2A 3.3 V
3.168/3.135 V(min)
3.432/3.465 V(max)
η Efficiency V
IN
= 12V, I
LOAD
=2A 76
LM2593HV-5.0
Electrical Characteristics
Specifications with standard type face are for T
J
= 25˚C, and those with boldface type apply over full Operating Tempera-
ture Range.
Symbol Parameter Conditions LM2593HV-5.0 Units
(Limits)
Typ Limit
(Note 4) (Note 5)
SYSTEM PARAMETERS (Note 6) Test Circuit
Figure 1
V
OUT
Output Voltage 7V ≤ V
IN
≤ 60V, 0.2A ≤ I
LOAD
≤ 2A 5 V
4.800/4.750 V(min)
5.200/5.250 V(max)
η Efficiency V
IN
= 12V, I
LOAD
=2A 81 %
LM2593HV-ADJ
Electrical Characteristics
Specifications with standard type face are for T
J
= 25˚C, and those with boldface type apply over full Operating Tempera-
ture Range.
Symbol Parameter Conditions LM2593HV-ADJ Units
(Limits)
Typ Limit
(Note 4) (Note 5)
SYSTEM PARAMETERS (Note 6) Test Circuit
Figure 1
V
FB
Feedback Voltage 4.5V ≤ V
IN
≤ 60V, 0.2A ≤ I
LOAD
≤ 2A 1.230 V
V
OUT
programmed for 3V. Circuit of Figure 1 . 1.193/1.180 V(min)
1.267/1.280 V(max)
LM2593HV
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