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LM317BD2T

更新时间： 2024-11-19 22:22:31
品牌 Logo 应用领域
安森美 - ONSEMI 稳压器调节器输出元件
页数 文件大小 规格书
12页 125K
描述
1.5 A Adjustable Output, Positive Voltage Regulator

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LM317BD2T 数据手册

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ON Semiconductort  
LM317  
1.5 A Adjustable Output,  
Positive Voltage Regulator  
THREE–TERMINAL  
ADJUSTABLE POSITIVE  
VOLTAGE REGULATOR  
The LM317 is an adjustable 3–terminal positive voltage regulator  
capable of supplying in excess of 1.5 A over an output voltage range of  
1.2 V to 37 V. This voltage regulator is exceptionally easy to use and  
requires only two external resistors to set the output voltage. Further, it  
employs internal current limiting, thermal shutdown and safe area  
compensation, making it essentially blow–out proof.  
The LM317 serves a wide variety of applications including local, on  
card regulation. This device can also be used to make a programmable  
output regulator, or by connecting a fixed resistor between the  
adjustment and output, the LM317 can be used as a precision current  
regulator.  
SEMICONDUCTOR  
TECHNICAL DATA  
T SUFFIX  
PLASTIC PACKAGE  
CASE 221A  
• Output Current in Excess of 1.5 A  
• Output Adjustable between 1.2 V and 37 V  
• Internal Thermal Overload Protection  
Heatsink surface  
• Internal Short Circuit Current Limiting Constant with Temperature  
• Output Transistor Safe–Area Compensation  
• Floating Operation for High Voltage Applications  
connected to Pin 2.  
1
2
3
2
• Available in Surface Mount D PAK, and Standard 3–Lead Transistor  
Pin 1. Adjust  
Package  
2. V  
3. V  
out  
in  
• Eliminates Stocking many Fixed Voltages  
Standard Application  
D2T SUFFIX  
PLASTIC PACKAGE  
CASE 936  
V
in  
V
out  
2
LM317  
1
2
(D PAK)  
3
R
1
240  
Heatsink surface (shown as terminal 4 in  
case outline drawing) is connected to Pin 2.  
I
Adj  
Adjust  
+
C *  
C **  
O
in  
0.1 µF  
1.0 µF  
R
2
ORDERING INFORMATION  
Operating  
Temperature Range  
Device  
LM317BD2T  
LM317BT  
LM317D2T  
LM317T  
Package  
Surface Mount  
Insertion Mount  
Surface Mount  
Insertion Mount  
T = –40° to +125°C  
J
**ĂC is required if regulator is located an appreciable distance from power supply filter.  
in  
**ĂC is not needed for stability, however, it does improve transient response.  
O
R
T = 0° to +125°C  
J
2
Ă +Ă 1.25ĂVĂǒ1 ) ǓĂ )Ă I  
V
ĂR  
out  
2
Adj  
R
1
Since I is controlled to less than 100 µA, the error associated with this term is  
Adj  
negligible in most applications.  
Semiconductor Components Industries, LLC, 2002  
1
Publication Order Number:  
January, 2002 – Rev. 3  
LM317/D  
1234567...12

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LM317BD2T 替代型号

型号 品牌 替代类型 描述 数据表
LM317BD2TR4G ONSEMI

完全替代

 1.5 A Adjustable Output, Positive Voltage Regulator
LM317BD2TG ONSEMI

完全替代

 1.5 A Adjustable Output, Positive Voltage Regulator
LM317D2TR4G ONSEMI

类似代替

 1.5 A Adjustable Output, Positive Voltage Regulator

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