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LM317LMX 参数 Datasheet PDF下载

LM317LMX图片预览
型号: LM317LMX
PDF下载: 下载PDF文件 查看货源
内容描述: LM317L三端可调稳压器 [LM317L 3-Terminal Adjustable Regulator]
分类和应用: 稳压器
文件页数/大小: 22 页 / 435 K
品牌: TI [ TEXAS INSTRUMENTS ]
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Precision High Voltage Regulator  
906430  
Q1, Q2: NSD134 or similar  
C1, C2: 1μF, 200V mylar**  
*Heat sink  
**Mylar is a registered trademark of DuPont Co.  
R1, R2 = matched resistors with good TC tracking  
Tracking Regulator  
Regulator With Trimmable Output Voltage  
906432  
Trim Procedure:  
—If VOUT is 23.08V or higher, cut out R3 (if lower, don't cut it out).  
—Then if VOUT is 22.47V or higher, cut out R4 (if lower, don't).  
—Then if VOUT is 22.16V or higher, cut out R5 (if lower, don't).  
This will trim the output to well within ±1% of 22.00 VDC, without any of the  
expense or uncertainty of a trim pot (see LB-46). Of course, this technique  
can be used at any output voltage level.  
906431  
A1 = LM301A, LM307, or LF13741 only  
13  
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