參數(shù)資料
型號： LMX2575MX-15
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PDSO24
封裝： SMT-24
文件頁數(shù)： 26/30頁
文件大小： 676K
代理商： LMX2575MX-15
LM1575-12, LM2575-12, LM2575HV-12
Electrical Characteristics
Specifications with standard type face are for T
J = 25C, 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
(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 = 25C, 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
(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
%
LM1575-ADJ, LM2575-ADJ, LM2575HV-ADJ
Electrical Characteristics
Specifications with standard type face are for T
J= 25C, and those with boldface type apply over full Operating Temperature
Range.
Symbol
Parameter
Conditions
Typ
LM1575-ADJ
LM2575-ADJ
Units
(Limits)
LM2575HV-ADJ
Limit
(Note 2)
(Note 3)
SYSTEM PARAMETERS (Note 4) Test Circuit
Figure 2
V
OUT
Feedback Voltage
V
IN = 12V, ILOAD = 0.2A
1.230
V
OUT = 5V
1.217
V(Min)
Circuit of
Figure 2
1.243
V(Max)
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