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參數(shù)資料
| 型號(hào)： | LM2576T-ADJFLOWLB03 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 3.5 A SWITCHING REGULATOR, 52 kHz SWITCHING FREQ-MAX, PSFM5 |
| 封裝： | BENT STAGGERED, TO-220, 5 PIN |
| 文件頁(yè)數(shù)： | 18/24頁(yè) |
| 文件大?。?/td> | 750K |
| 代理商： | LM2576T-ADJFLOWLB03 |
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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
ON /OFF Pin Input Voltage
0.3V
≤ V ≤ +V
IN
Output Voltage to Ground
(Steady State)
1V
Power Dissipation
Internally Limited
Storage Temperature Range
65C to +150C
Maximum Junction Temperature
150C
Minimum ESD Rating
(C = 100 pF, R = 1.5 k
)2 kV
Lead Temperature
(Soldering, 10 Seconds)
260C
Operating Ratings
Temperature Range
LM2576/LM2576HV
40C
≤ T
J
≤ +125C
Supply Voltage
LM2576
40V
LM2576HV
60V
LM2576-3.3, LM2576HV-3.3
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
LM2576-3.3
Units
(Limits)
LM2576HV-3.3
Typ
Limit
V
OUT
Output Voltage
V
IN = 12V, ILOAD = 0.5A
3.3
V
Circuit of Figure 2
3.234
V(Min)
3.366
V(Max)
V
OUT
Output Voltage
6V
≤ V
IN
≤ 40V, 0.5A ≤ I
LOAD
≤ 3A
3.3
V
LM2576
Circuit of Figure 2
3.168/3.135
V(Min)
3.432/3.465
V(Max)
V
OUT
Output Voltage
6V
≤ V
IN
≤ 60V, 0.5A ≤ I
LOAD
≤ 3A
3.3
V
LM2576HV
Circuit of Figure 2
3.168/3.135
V(Min)
3.450/3.482
V(Max)
η
Efficiency
V
IN = 12V, ILOAD =3A
75
%
LM2576-5.0, LM2576HV-5.0
Electrical Characteristics
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
V
OUT
Output Voltage
V
IN = 12V, ILOAD = 0.5A
5.0
V
Circuit of Figure 2
4.900
V(Min)
5.100
V(Max)
V
OUT
Output Voltage
0.5A
≤ I
LOAD
≤ 3A,
5.0
V
LM2576
8V
≤ V
IN
≤ 40V
4.800/4.750
V(Min)
Circuit of Figure 2
5.200/5.250
V(Max)
V
OUT
Output Voltage
0.5A
≤ I
LOAD
≤ 3A,
5.0
V
LM2576HV
8V
≤ V
IN
≤ 60V
4.800/4.750
V(Min)
Circuit of Figure 2
5.225/5.275
V(Max)
LM2576/LM2576HV
www.national.com
3
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PDF描述 |
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| LM2576T-ADJLB03/NOPB | 3 A SWITCHING REGULATOR, 52 kHz SWITCHING FREQ-MAX, SFM5 |
| LM2576T-12FLOWLB03 | 3.5 A SWITCHING REGULATOR, 52 kHz SWITCHING FREQ-MAX, PSFM5 |
| LM2576T-12/LB03 | 7.5 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSFM5 |
| LM2576HVT-ADJFLOWLB03/NOPB | 7.5 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, ZFM5 |
| LM2576SX-12/NOPB | 7.5 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSSO5 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM2576T-ADJG | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 3A 1.23-37V ADJ Buck PWM RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| LM2576T-ADJ-H | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Voltage-Mode SMPS Controller |
| LM2576T-ADJLB03 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Mode SMPS Controller |
| LM2576T-ADJ-V | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Voltage-Mode SMPS Controller |
| LM2576TV | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:3.0A, 15V, Step-Down Switching Regulator |
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