參數(shù)資料
型號(hào)： LM2576HVT-15/LB03
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： 7.5 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSFM5
封裝： GREEN, TO-220, 5 PIN
文件頁數(shù)： 19/24頁
文件大?。?/td> 750K
代理商： LM2576HVT-15/LB03
LM2576-5.0, LM2576HV-5.0
Electrical Characteristics (Continued)
Specifications with standard type face are for T
J = 25C, and those with Figure 2 boldface type apply over full Operating Tem-
perature Range.
Symbol
Parameter
Conditions
LM2576-5.0
Units
(Limits)
LM2576HV-5.0
Typ
Limit
SYSTEM PARAMETERS (Note 3) Test Circuit Figure 2
η
Efficiency
V
IN = 12V, ILOAD =3A
77
%
LM2576-12, LM2576HV-12
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
LM2576-12
Units
(Limits)
LM2576HV-12
Typ
Limit
SYSTEM PARAMETERS (Note 3) Test Circuit Figure 2
V
OUT
Output Voltage
V
IN = 25V, ILOAD = 0.5A
12
V
Circuit of Figure 2
11.76
V(Min)
12.24
V(Max)
V
OUT
Output Voltage
0.5A
≤ I
LOAD
≤ 3A,
12
V
LM2576
15V
≤ V
IN
≤ 40V
11.52/11.40
V(Min)
Circuit of Figure 2
12.48/12.60
V(Max)
V
OUT
Output Voltage
0.5A
≤ I
LOAD
≤ 3A,
12
V
LM2576HV
15V
≤ V
IN
≤ 60V
11.52/11.40
V(Min)
Circuit of Figure 2
12.54/12.66
V(Max)
η
Efficiency
V
IN = 15V, ILOAD =3A
88
%
LM2576-15, LM2576HV-15
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
LM2576-15
Units
(Limits)
LM2576HV-15
Typ
Limit
SYSTEM PARAMETERS (Note 3) Test Circuit Figure 2
V
OUT
Output Voltage
V
IN = 25V, ILOAD = 0.5A
15
V
Circuit of Figure 2
14.70
V(Min)
15.30
V(Max)
V
OUT
Output Voltage
0.5A
≤ I
LOAD
≤ 3A,
15
V
LM2576
18V
≤ V
IN
≤ 40V
14.40/14.25
V(Min)
Circuit of Figure 2
15.60/15.75
V(Max)
V
OUT
Output Voltage
0.5A
≤ I
LOAD
≤ 3A,
15
V
LM2576HV
18V
≤ V
IN
≤ 60V
14.40/14.25
V(Min)
Circuit of Figure 2
15.68/15.83
V(Max)
η
Efficiency
V
IN = 18V, ILOAD =3A
88
%
LM2576/LM2576HV
www.national.com
4
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