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參數(shù)資料
| 型號(hào)： | LM2576T-3.3FLOWLB03 |
| 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)： | 2/24頁(yè) |
| 文件大小： | 750K |
| 代理商： | LM2576T-3.3FLOWLB03 |
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Test Circuit and Layout Guidelines
As in any switching regulator, layout is very important. Rap-
idly switching currents associated with wiring inductance
generate voltage transients which can cause problems. For
minimal inductance and ground loops, the length of the leads
indicated by heavy lines should be kept as short as possible.
Single-point grounding (as indicated) or ground plane con-
struction should be used for best results. When using the
Adjustable version, physically locate the programming resis-
tors near the regulator, to keep the sensitive feedback wiring
short.
Fixed Output Voltage Versions
01147607
CIN — 100 F, 75V, Aluminum Electrolytic
COUT — 1000 F, 25V, Aluminum Electrolytic
D1 — Schottky, MBR360
L1 — 100 H, Pulse Eng. PE-92108
R1 — 2k, 0.1%
R2 — 6.12k, 0.1%
Adjustable Output Voltage Version
01147608
where VREF = 1.23V, R1 between 1k and 5k.
FIGURE 2.
LM2576/LM2576HV
www.national.com
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM2576T-5 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Easy Switcher 3.0A Step-Down Voltage Regulator |
| LM2576T5.0 | 制造商:National Semiconductor Corporation 功能描述: |
| LM2576T-5.0 | 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 |
| LM2576T5.0 DC94 | 制造商:SEM 功能描述:2576 |
| LM2576T-5.0/LB02 | 制造商:Texas Instruments 功能描述:Conv DC-DC Single Non-Inv/Inv/Step Up/Step Down 4V to 40V 5-Pin(5+Tab) TO-220 |
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