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參數(shù)資料
| 型號： | LM2575N-ADJEP |
| 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, PDIP16 |
| 封裝： | DIP-16 |
| 文件頁數(shù)： | 2/26頁 |
| 文件大?。?/td> | 1069K |
| 代理商： | LM2575N-ADJEP |
Typical Performance Characteristics (Circuit of Figure 2) (Continued)
Feedback Pin Current
Maximum Power Dissipation
(TO-263) (See (Note 14))
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20113228
Switching Waveforms
Load Transient Response
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VOUT =5V
A: Output Pin Voltage, 10V/div
B: Output Pin Current, 1A/div
C: Inductor Current, 0.5A/div
D: Output Ripple Voltage, 20 mV/div,
AC-Coupled
Horizontal Time Base: 5 s/div
20113207
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.
LM2575EP/LM2575HVEP
www.national.com
10
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM2575R | 制造商:HTC 制造商全稱:HTC Korea TAEJIN Technology Co. 功能描述:1A, 52kHz, Step-Down Switching Regulator |
| LM2575S | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:1A & 3A Miniconverter Switching Regulators |
| LM2575S-12 | 功能描述:直流/直流開關轉換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率: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 安裝風格:SMD/SMT |
| LM2575S-12.TR | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Analog IC |
| LM2575S-12/NOPB | 功能描述:直流/直流開關轉換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率: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 安裝風格:SMD/SMT |
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