LM2576S-12 Ver la hoja de datos (PDF) - Unspecified
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LM2576S-12 Datasheet PDF : 23 Pages
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LM2576/LM2576HV
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
LM2576
45V
LM2576HV
63V
/OFF Pin Input Voltage
-0.3V≤V≤+VIN
Output Voltage to Ground
(Steady State)
-1V
Power Dissipation
Internally Limited
Storage Temperature Range
-65℃ to +150℃
Maximum Junction Temperature
150℃
Minimum ESD Rating
(C =100pF, R=1.5KΩ)
Lead Temperature
(Soldering, 10 Seconds)
Operating Ratings
Temperature Range
LM2576/LM2576HV
Supply Voltage
LM2576
LM2576HV
2KV
260℃
-40℃≤TJ≤+125℃
40V
60V
LM2576-3.3, LM2576HV-3.3
Electrical Characteristics
Specifications with standard type face are for TJ=25℃, and those with boldface type apply over full Operating Temperature Range.
LM2576-3.3
Symbol
Parameter
Conditions
LM2576HV-3.3
Limit
Typ
(Note 2)
Units(limits)
SYSTEM PARAMETERS (Note 3) Test Circuit Figure 2
VOUT
Output Voltage
VIN=12V, ILOAD=0.5A
Circuit of Figure 2
3.3
3.234
V
V(Min)
3.366
V(Max)
VOUT
Output Voltage
LM2576
6V≤VIN≤40V,0.5A≤ILOAD≤3A
Circuit of Figure 2
3.3
3.168/3.135
V
V(Min)
3.432/3.465
V(Max)
VOUT
Output Voltage
LM2576HV
6V≤VIN≤60V,
0.5A≤ILOAD≤3A
Circuit of Figure 2
3.3
3.168/3.135
3.450/3.482
V
V(Min)
V(Max)
η
Efficiency
VIN=12V, ILOAD=3A
75
%
LM2576-5.0, LM2576HV-5.0
Electrical Characteristics
Specifications with standard type face are for TJ=25℃, and those with Figure 2 boldface type apply over full Operating Temperature Range.
LM2576-5.0
Symbol
Parameter
Conditions
LM2576HV-5.0
Typ
Limit
(Note 2)
Units(limits)
SYSTEM PARAMETERS (Note 3) Test Circuit Figure 2
VOUT
Output Voltage
VIN=12V, ILOAD=0.5A
5.0
Circuit of Figure 2
4.900
V
V(Min)
5.100
V(Max)
VOUT
Output Voltage
0.5A≤ILOAD≤3A,
5.0
V
LM2576
8V≤VIN≤40V
4.800/4.750
V(Min)
Circuit of Figure 2
5.200/5.250
V(Max)
VOUT
Output Voltage
0.5A≤ILOAD≤3A,
5.0
V
LM2576HV
8V≤VIN≤60V
4.800/4.750
V(Min)
Circuit of Figure 2
5.225/5.275
V(Max)
η
Efficiency
VIN=12V, ILOAD=3A
77
%
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