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LM2578MDC PDF预览

LM2578MDC

更新时间: 2024-02-08 01:48:51
品牌 Logo 应用领域
美国国家半导体 - NSC 开关
页数 文件大小 规格书
18页 1037K
描述
IC 0.75 A SWITCHING REGULATOR, 100 kHz SWITCHING FREQ-MAX, UUC, DIE, Switching Regulator or Controller

LM2578MDC 技术参数

是否Rohs认证: 符合生命周期:Obsolete
包装说明:DIE, DIE OR CHIPReach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.72模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:VOLTAGE-MODE最大输入电压:40 V
最小输入电压:2 VJESD-30 代码:X-XUUC-N
湿度敏感等级:1功能数量:1
最高工作温度:85 °C最低工作温度:-40 °C
最大输出电流:0.75 A封装主体材料:UNSPECIFIED
封装代码:DIE封装等效代码:DIE OR CHIP
封装形状:UNSPECIFIED封装形式:UNCASED CHIP
峰值回流温度(摄氏度):260认证状态:Not Qualified
子类别:Switching Regulator or Controllers表面贴装:YES
切换器配置:BOOST最大切换频率:100 kHz
技术:BIPOLAR温度等级:INDUSTRIAL
端子形式:NO LEAD端子位置:UPPER
处于峰值回流温度下的最长时间:40Base Number Matches:1

LM2578MDC 数据手册

 浏览型号LM2578MDC的Datasheet PDF文件第2页浏览型号LM2578MDC的Datasheet PDF文件第3页浏览型号LM2578MDC的Datasheet PDF文件第4页浏览型号LM2578MDC的Datasheet PDF文件第5页浏览型号LM2578MDC的Datasheet PDF文件第6页浏览型号LM2578MDC的Datasheet PDF文件第7页 
April 1998  
LM1578A/LM2578A/LM3578A  
Switching Regulator  
General Description  
Features  
n Inverting and non-inverting feedback inputs  
n 1.0V reference at inputs  
The LM1578A is a switching regulator which can easily be  
set up for such DC-to-DC voltage conversion circuits as the  
buck, boost, and inverting configurations. The LM1578A fea-  
tures a unique comparator input stage which not only has  
separate pins for both the inverting and non-inverting inputs,  
but also provides an internal 1.0V reference to each input,  
thereby simplifying circuit design and p.c. board layout. The  
output can switch up to 750 mA and has output pins for its  
collector and emitter to promote design flexibility. An external  
current limit terminal may be referenced to either the ground  
or the Vin terminal, depending upon the application. In addi-  
tion, the LM1578A has an on board oscillator, which sets the  
n Operates from supply voltages of 2V to 40V  
n Output current up to 750 mA, saturation less than 0.9V  
n Current limit and thermal shut down  
n Duty cycle up to 90%  
Applications  
n Switching regulators in buck, boost, inverting, and  
single-ended transformer configurations  
n Motor speed control  
<
switching frequency with a single external capacitor from  
Hz to 100 kHz (typical).  
1
n Lamp flasher  
The LM1578A is an improved version of the LM1578, offer-  
ing higher maximum ratings for the total supply voltage and  
output transistor emitter and collector voltages.  
Functional Diagram  
DS008711-1  
© 1998 National Semiconductor Corporation  
DS008711  
www.national.com  

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