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參數(shù)資料
| 型號(hào)： | LM2574M-15/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1.8 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PDSO14 |
| 封裝： | SMT-14 |
| 文件頁(yè)數(shù)： | 28/33頁(yè) |
| 文件大?。?/td> | 814K |
| 代理商： | LM2574M-15/NOPB |
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LM2574-12, LM2574HV-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
LM2574-12
Units
(Limits)
LM2574HV-12
Typ
Limit
(Note 2)
SYSTEM PARAMETERS (Note 3) Test Circuit
Figure 2
V
OUT
Output Voltage
V
IN = 25V, ILOAD = 100 mA
12
V
11.76
V(Min)
12.24
V(Max)
V
OUT
Output Voltage
15V
≤ V
IN ≤ 40V, 0.1A ≤ ILOAD ≤ 0.5A
12
V
LM2574
11.52/11.40
V(Min)
12.48/12.60
V(Max)
V
OUT
Output Voltage
15V
≤ V
IN ≤ 60V, 0.1A ≤ ILOAD ≤ 0.5A
12
LM2574HV
11.52/11.40
V(Min)
12.54/12.66
V(Max)
η
Efficiency
V
IN = 15V, ILOAD = 0.5A
88
%
LM2574-15, LM2574HV-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
LM2574-15
Units
(Limits)
LM2574HV-15
Typ
Limit
(Note 2)
SYSTEM PARAMETERS (Note 3) Test Circuit
Figure 2
V
OUT
Output Voltage
V
IN = 30V, ILOAD = 100 mA
15
V
14.70
V(Min)
15.30
V(Max)
V
OUT
Output Voltage
18V
≤ V
IN ≤ 40V, 0.1A ≤ ILOAD ≤ 0.5A
15
V
LM2574
14.40/14.25
V(Min)
15.60/15.75
V(Max)
V
OUT
Output Voltage
18V
≤ V
IN ≤ 60V, 0.1A ≤ ILOAD ≤ 0.5A
15
LM2574HV
14.40/14.25
V(Min)
15.68/15.83
V(Max)
η
Efficiency
V
IN = 18V, ILOAD = 0.5A
88
%
LM2574-ADJ, LM2574HV-ADJ
Electrical Characteristics
Specifications with standard type face are for T
J = 25C, and those with boldface type apply over full Operating Tempera-
ture Range. Unless otherwise specified, V
IN = 12V, ILOAD = 100 mA.
Symbol
Parameter
Conditions
LM2574-ADJ
Units
(Limits)
LM2574HV-ADJ
Typ
Limit
(Note 2)
SYSTEM PARAMETERS (Note 3) Test Circuit
Figure 2
V
FB
Feedback Voltage
V
IN = 12V, ILOAD = 100 mA
1.230
V
1.217
V(Min)
1.243
V(Max)
www.national.com
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相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM2574-ADJMDC | 1.8 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, UUC |
| LM2574-12MDC | 1.8 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, UUC |
| LM2574-5.0MDC | 1.8 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, UUC |
| LM2574-3.3MDC | 1.8 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, UUC |
| LM2574N-5 | 1.8 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PDIP8 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM2574M-3.3 | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| LM2574M-3.3/NOPB | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 0.5A STEP-DOWN VLTG REG RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| LM2574M-3.3/NOPB | 制造商:Texas Instruments 功能描述:DC/DC Converter (DC-DC) / Switching Regu |
| LM2574M-3.3LM2574M-5.0 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:SIMPLE SWITCHERT 0.5A Step-Down Voltage Regulator(639.73 k) |
| LM2574M-5 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:SIMPLE SWITCHERT 0.5A Step-Down Voltage Regulator(639.73 k) |
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