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LM2575T-5.0 Datasheet(PDF) 6 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Part No. LM2575T-5.0
Description  SIMPLE SWITCHER 1A Step-Down Voltage Regulator
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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LM1575-5.0, LM2575-5.0, LM2575HV-5.0
Electrical Characteristics (Continued)
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
Typ
LM1575-5.0
LM2575-5.0
Units
(Limits)
LM2575HV-5.0
Limit
Limit
(Note 2)
(Note 3)
η
Efficiency
V
IN = 12V, ILOAD =1A
77
%
LM1575-12, LM2575-12, LM2575HV-12
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
Typ
LM1575-12
LM2575-12
Units
(Limits)
LM2575HV-12
Limit
Limit
(Note 2)
(Note 3)
SYSTEM PARAMETERS (Note 4) Test Circuit Figure 2
V
OUT
Output Voltage
V
IN = 25V, ILOAD = 0.2A
12
V
Circuit of Figure 2
11.88
11.76
V(Min)
12.12
12.24
V(Max)
V
OUT
Output Voltage
0.2A
≤ I
LOAD
≤ 1A,
12
V
LM1575/LM2575
15V
≤ V
IN
≤ 40V
11.64/11.52
11.52/11.40
V(Min)
Circuit of Figure 2
12.36/12.48
12.48/12.60
V(Max)
V
OUT
Output Voltage
0.2A
≤ I
LOAD
≤ 1A,
12
V
LM2575HV
15V
≤ V
IN
≤ 60V
11.64/11.52
11.52/11.40
V(Min)
Circuit of Figure 2
12.42/12.54
12.54/12.66
V(Max)
η
Efficiency
V
IN = 15V, ILOAD =1A
88
%
LM1575-15, LM2575-15, LM2575HV-15
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
Typ
LM1575-15
LM2575-15
Units
(Limits)
LM2575HV-15
Limit
Limit
(Note 2)
(Note 3)
SYSTEM PARAMETERS (Note 4) Test Circuit Figure 2
V
OUT
Output Voltage
V
IN = 30V, ILOAD = 0.2A
15
V
Circuit of Figure 2
14.85
14.70
V(Min)
15.15
15.30
V(Max)
V
OUT
Output Voltage
0.2A
≤ I
LOAD
≤ 1A,
15
V
LM1575/LM2575
18V
≤ V
IN
≤ 40V
14.55/14.40
14.40/14.25
V(Min)
Circuit of Figure 2
15.45/15.60
15.60/15.75
V(Max)
V
OUT
Output Voltage
0.2A
≤ I
LOAD
≤ 1A,
15
V
LM2575HV
18V
≤ V
IN
≤ 60V
14.55/14.40
14.40/14.25
V(Min)
Circuit of Figure 2
15.525/15.675
15.68/15.83
V(Max)
η
Efficiency
V
IN = 18V, ILOAD =1A
88
%
www.national.com
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