LM1575/LM2575/LM2575HV
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
LM1575/LM2575
LM2575HV
ON /OFF Pin Input Voltage
Output Voltage to Ground
(Steady State)
Power Dissipation
Storage Temperature Range
Maximum Junction Temperature
45V
63V
−0.3V
≤
V
≤
+V
IN
−1V
Internally Limited
−65°C to +150°C
150°C
Minimum ESD Rating
(C = 100 pF, R = 1.5 kΩ)
Lead Temperature
(Soldering, 10 sec.)
2 kV
260°C
Operating Ratings
Temperature Range
LM1575
LM2575/LM2575HV
Supply Voltage
LM1575/LM2575
LM2575HV
−55°C
≤
T
J
≤
+150°C
−40°C
≤
T
J
≤
+125°C
40V
60V
LM1575-3.3, LM2575-3.3, LM2575HV-3.3
Electrical Characteristics
Specifications with standard type face are for T
J
= 25°C, and those with
boldface type
apply over
full Operating Temperature
Range
.
Symbol
Parameter
Conditions
Typ
LM1575-3.3
Limit
(Note 2)
SYSTEM PARAMETERS
(Note 4) Test Circuit
V
OUT
Output Voltage
V
IN
= 12V, I
LOAD
= 0.2A
Circuit of
V
OUT
Output Voltage
LM1575/LM2575
V
OUT
Output Voltage
LM2575HV
η
Efficiency
4.75V
≤
V
IN
≤
40V, 0.2A
≤
I
LOAD
≤
1A
Circuit of
4.75V
≤
V
IN
≤
60V, 0.2A
≤
I
LOAD
≤
1A
Circuit of
V
IN
= 12V, I
LOAD
= 1A
75
3.3
3.200/3.168
3.416/3.450
3.168/3.135
3.450/3.482
3.3
3.200/3.168
3.400/3.432
3.168/3.135
3.432/3.465
3.3
3.267
3.333
3.234
3.366
V
V(Min)
V(Max)
V
V(Min)
V(Max)
V
V(Min)
V(Max)
%
LM2575-3.3
Units
(Limits)
LM2575HV-3.3
Limit
(Note 3)
LM1575-5.0, LM2575-5.0, LM2575HV-5.0
Electrical Characteristics
Specifications with standard type face are for T
J
= 25°C, and those with
boldface type
apply over
full Operating Temperature
Range.
Symbol
Parameter
Conditions
Typ
LM1575-5.0
Limit
(Note 2)
SYSTEM PARAMETERS
(Note 4) Test Circuit
V
OUT
Output Voltage
V
IN
= 12V, I
LOAD
= 0.2A
Circuit of
V
OUT
Output Voltage
LM1575/LM2575
0.2A
≤
I
LOAD
≤
1A,
8V
≤
V
IN
≤
40V
Circuit of
5.0
4.850/4.800
5.150/5.200
4.800/4.750
5.200/5.250
5.0
4.950
5.050
4.900
5.100
V
V(Min)
V(Max)
V
V(Min)
V(Max)
LM2575-5.0
LM2575HV-5.0
Limit
(Note 3)
Units
(Limits)
5
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