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LM2577N-12 PDF预览

LM2577N-12

更新时间： 2024-01-23 05:18:10
品牌 Logo 应用领域
美国国家半导体 - NSC 稳压器开关光电二极管
页数 文件大小 规格书
27页 891K
描述
SIMPLE SWITCHER Step-Up Voltage Regulator

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中文翻译

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LM2577N-12 技术参数

生命周期：Obsolete零件包装代码：DIP
包装说明：DIP-16针数：16
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.1
Is Samacsys：N模拟集成电路 - 其他类型：SWITCHING REGULATOR
控制模式：CURRENT-MODE最大输入电压：40 V
最小输入电压：3.5 V标称输入电压：5 V
JESD-30 代码：R-PDIP-T16长度：21.755 mm
功能数量：1端子数量：16
最高工作温度：125 °C最低工作温度：-40 °C
最大输出电流：6 A标称输出电压：12 V
封装主体材料：PLASTIC/EPOXY封装代码：DIP
封装形状：RECTANGULAR封装形式：IN-LINE
座面最大高度：5.08 mm表面贴装：NO
切换器配置：BOOST温度等级：AUTOMOTIVE
端子形式：THROUGH-HOLE端子节距：2.54 mm
端子位置：DUAL宽度：7.62 mm
Base Number Matches：1

LM2577N-12 数据手册

 浏览型号LM2577N-12的Datasheet PDF文件第2页浏览型号LM2577N-12的Datasheet PDF文件第3页浏览型号LM2577N-12的Datasheet PDF文件第4页浏览型号LM2577N-12的Datasheet PDF文件第5页浏览型号LM2577N-12的Datasheet PDF文件第6页浏览型号LM2577N-12的Datasheet PDF文件第7页 
June 1999  
LM1577/LM2577 Series  
SIMPLE SWITCHER® Step-Up Voltage Regulator  
General Description  
Features  
n Requires few external components  
n NPN output switches 3.0A, can stand off 65V  
n Wide input voltage range: 3.5V to 40V  
n Current-mode operation for improved transient  
response, line regulation, and current limit  
n 52 kHz internal oscillator  
The LM1577/LM2577 are monolithic integrated circuits that  
provide all of the power and control functions for step-up  
(boost), flyback, and forward converter switching regulators.  
The device is available in three different output voltage ver-  
sions: 12V, 15V, and adjustable.  
Requiring a minimum number of external components, these  
regulators are cost effective, and simple to use. Listed in this  
data sheet are a family of standard inductors and flyback  
transformers designed to work with these switching regula-  
tors.  
n Soft-start function reduces in-rush current during start-up  
n Output switch protected by current limit, under-voltage  
lockout, and thermal shutdown  
Included on the chip is a 3.0A NPN switch and its associated  
protection circuitry, consisting of current and thermal limiting,  
and undervoltage lockout. Other features include a 52 kHz  
fixed-frequency oscillator that requires no external compo-  
nents, a soft start mode to reduce in-rush current during  
start-up, and current mode control for improved rejection of  
input voltage and output load transients.  
Typical Applications  
n Simple boost regulator  
n Flyback and forward regulators  
n Multiple-output regulator  
Typical Application  
DS011468-1  
Note: Pin numbers shown are for TO-220 (T) package.  
Ordering Information  
Temperature  
Range  
Package  
Type  
Output Voltage  
15V  
NSC  
12V  
ADJ  
Package Package  
Drawing  
−40˚C ≤ TA ≤ +125˚C 24-Pin Surface Mount  
16-Pin Molded DIP  
LM2577M-12  
LM2577N-12  
LM2577S-12  
LM2577T-12  
LM2577T-12  
Flow LB03  
LM2577M-15  
LM2577N-15  
LM2577S-15  
LM2577T-15  
LM2577T-15  
Flow LB03  
LM2577M-ADJ  
LM2577N-ADJ  
LM2577S-ADJ  
LM2577T-ADJ  
LM2577T-ADJ  
Flow LB03  
M24B  
N16A  
TS5B  
T05A  
T05D  
SO  
N
5-Lead Surface Mount  
5-Straight Leads  
TO-263  
TO-220  
TO-220  
5-Bent Staggered  
Leads  
−55˚C ≤ TA ≤ +150˚C 4-Pin TO-3  
LM1577K-12/883 LM1577K-15/883  
LM1577K-  
ADJ/883  
K04A  
TO-3  
SIMPLE SWITCHER® is a registered trademark of National Semiconductor Corporation.  
© 1999 National Semiconductor Corporation  
DS011468  
www.national.com  
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