參數(shù)資料
型號： LM2575S-12T
元件分類： 穩(wěn)壓器
英文描述： 3.2 A SWITCHING REGULATOR, 62 kHz SWITCHING FREQ-MAX, PSSO5
封裝： TO-263, 5 PIN
文件頁數(shù)： 3/18頁
文件大?。?/td> 449K
代理商： LM2575S-12T
1.0 & 3.0 AMP MINICONVERTER
SWITCHING REGULATORS
LM2575
LM2576
1998 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
April 7, 1998
11
5. LAYOUT. Use short connections with a central point
ground to prevent improper operation caused by stray
inductance and ground loops.
6. OUTPUT CAPACITOR. Ripple voltage on V
OUT is
directly related to the value of C
OUT and the internal re-
sistance ESR of C
OUT. Output noise can be lowered by
increasing C
OUT or by selecting a capacitor with a lower
ESR. ESR must be approximately 0.03
for the
LM2576 or 0.07
for the LM2575, or above to maintain
stability, otherwise raise value of C
OUT.
7. SWITCHING SPIKES. Switching spikes will also oc-
cur due to distributive capacitance across turns of the
inductor when combined with output capacitor series
inductance (ESL). Reduction to a level at or below the
switching ripple can be achieved by using a post filter
as shown.
SWITCHING SPIKE REDUCTION
相關(guān)PDF資料
PDF描述
LM2576S-3.3 7.5 A SWITCHING REGULATOR, 62 kHz SWITCHING FREQ-MAX, PSSO5
LM2576S-5.0 7.5 A SWITCHING REGULATOR, 62 kHz SWITCHING FREQ-MAX, PSSO5
LM2575T-12EP 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, SFM5
LM2575HVM-12EP 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSSO5
LM2575HVSX-5.0EP 3.2 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
LM2575S-12TR 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:1A & 3A Miniconverter Switching Regulators
LM2575S-15 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 安裝風格:SMD/SMT
LM2575S-15 NOPB 制造商:National Semiconductor 功能描述:Conv DC-DC Single Step Down 4V to 40V 6-Pin(5+Tab) TO-263
LM2575S-15/NOPB 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 安裝風格:SMD/SMT
LM2575S-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 安裝風格:SMD/SMT
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