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LM2575T-3.3 PDF预览

LM2575T-3.3

更新时间： 2024-09-15 22:57:31
品牌 Logo 应用领域
商升特 - SEMTECH 稳压器开关局域网
页数 文件大小 规格书
19页 441K
描述
1A & 3A Miniconverter Switching Regulators

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中文翻译

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LM2575T-3.3 数据手册

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LM2575 & LM2576  
1A & 3A Miniconverter  
Switching Regulators  
POWER MANAGEMENT  
Description  
Features  
The LM2575/6 series switching regulators are monolithic  
integrated circuits designed for use in “buck” or “buck/  
boost” regulator applications requiring accurate output  
voltages over combined variations of line, load and  
temperature. This unique series greatly simplifies  
switching power supply design. The LM2575 has a  
maximum output current of 1A and the LM2576 is rated  
for 3A.  
u Pin for pin replacement for National’s LM2575/6  
series  
u DC-to-DC buck or buck/boost converter requiring  
only 4 support components  
u Fixed or adjustable voltages  
u Preset output voltages of 3.3V, 5V and 12V  
u Wide output voltage range, 1.23V to 35V  
u 82% typical efficiency @ 5V out  
u Wide input voltage range, 4V to 40V  
u Inhibit/enable control pin  
The LM2575/6 series miniconverters include a  
switching regulator and compensation network all within  
the same package. Just add a choke, catch diode and  
two capacitors to obtain an efficient DC-to-DC converter.  
The current limit and thermal shutdown features of the  
LM2575/6 series fully protect the device against  
overstress conditions.  
u Industrial temperature range  
u TO-220 and TO-263 packages  
Applications  
u Micro controller power supplies  
u Medical equipment  
u Industrial power supplies  
u Instrumentation power supplies  
The LM2575/6 series offers an alternative to popular 3  
terminal linear regulators by providing higher efficiency  
with reduced heatsink size. In many applications a heat  
sink will not be required.  
Typical Application Circuits  
LM2575 LM2576  
L1  
D1  
330µH  
3A  
100µH  
7A  
CIN  
68µF  
120µF  
COUT 330µF 1,000µF  
Revision 1, January 2001  
1
www.semtech.com  
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LM2575T-3.3 替代型号

型号 品牌 替代类型 描述 数据表
LM2575T-3.3/NOPB TI

功能相似

 LM1575/LM2575/LM2575HV SIMPLE SWITCHER 1A Step-Down Voltage Regulator
LM2575T-3.3 TI

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 LM1575/LM2575/LM2575HV SIMPLE SWITCHER 1A Step-Down Voltage Regulator
LM2595T-3.3/NOPB TI

功能相似

 LM2595 SIMPLE SWITCHER® Power Converter 150

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