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LM140K-15 PDF预览

LM140K-15

更新时间： 2024-01-19 17:30:29
品牌 Logo 应用领域
美国国家半导体 - NSC 三端稳压器调节器输出元件局域网
页数 文件大小 规格书
17页 920K
描述
3-Terminal Positive Regulators

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中文翻译

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LM140K-15 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active包装说明：TO-3, TO-204/-3
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：6 weeks
风险等级：2.37可调性：FIXED
标称回动电压 1：2.5 V最大绝对输入电压：35 V
最大输入电压：35 V最小输入电压：17.5 V
JESD-30 代码：O-MBFM-P2长度：38.94 mm
最大电网调整率：0.03%最大负载调整率：0.075%
湿度敏感等级：1功能数量：1
输出次数：1端子数量：2
工作温度TJ-Max：150 °C工作温度TJ-Min：-55 °C
最高工作温度：125 °C最低工作温度：-55 °C
最大输出电流 1：1 A最大输出电压 1：15.6 V
最小输出电压 1：14.4 V标称输出电压 1：15 V
封装主体材料：METAL封装代码：TO-3
封装等效代码：TO-204/-3封装形状：ROUND
封装形式：FLANGE MOUNT峰值回流温度（摄氏度）：NOT SPECIFIED
认证状态：Not Qualified调节器类型：FIXED POSITIVE SINGLE OUTPUT STANDARD REGULATOR
座面最大高度：8.94 mm子类别：Other Regulators
表面贴装：NO技术：BIPOLAR
端子形式：PIN/PEG端子位置：BOTTOM
处于峰值回流温度下的最长时间：NOT SPECIFIED最大电压容差：4%
宽度：25.4 mm

LM140K-15 数据手册

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November 2004  
LM340/LM78XX Series  
3-Terminal Positive Regulators  
General Description  
The 5V, 12V, and 15V regulator options are available in the  
steel TO-3 power package. The LM340A/LM340/LM78XXC  
series is available in the TO-220 plastic power package, and  
the LM340-5.0 is available in the SOT-223 package, as well  
as the LM340-5.0 and LM340-12 in the surface-mount TO-  
263 package.  
The  
LM140/LM340A/LM340/LM78XXC  
monolithic  
3-terminal positive voltage regulators employ internal  
current-limiting, thermal shutdown and safe-area compensa-  
tion, making them essentially indestructible. If adequate heat  
sinking is provided, they can deliver over 1.0A output cur-  
rent. They are intended as fixed voltage regulators in a wide  
range of applications including local (on-card) regulation for  
elimination of noise and distribution problems associated  
with single-point regulation. In addition to use as fixed volt-  
age regulators, these devices can be used with external  
components to obtain adjustable output voltages and cur-  
rents.  
Features  
n Complete specifications at 1A load  
n Output voltage tolerances of 2% at Tj = 25˚C and 4%  
over the temperature range (LM340A)  
n Line regulation of 0.01% of VOUT/V of ∆VIN at 1A load  
(LM340A)  
n Load regulation of 0.3% of VOUT/A (LM340A)  
n Internal thermal overload protection  
n Internal short-circuit current limit  
n Output transistor safe area protection  
n P+ Product Enhancement tested  
Considerable effort was expended to make the entire series  
of regulators easy to use and minimize the number of exter-  
nal components. It is not necessary to bypass the output,  
although this does improve transient response. Input by-  
passing is needed only if the regulator is located far from the  
filter capacitor of the power supply.  
Typical Applications  
Fixed Output Regulator  
Adjustable Output Regulator  
00778102  
00778101  
>
= 5V + (5V/R1 + I ) R2 5V/R1 3 I ,  
Q Q  
V
OUT  
*Required if the regulator is located far from the power supply filter.  
load regulation (L ) ≈ [(R1 + R2)/R1] (L of LM340-5).  
r
r
**Although no output capacitor is needed for stability, it does help transient  
response. (If needed, use 0.1 µF, ceramic disc).  
Comparison between SOT-223 and D-Pak (TO-252)  
Packages  
Current Regulator  
00778103  
00778138  
Scale 1:1  
∆I = 1.3 mA over line and load changes.  
Q
© 2004 National Semiconductor Corporation  
DS007781  
www.national.com  
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