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LM317BT4

更新时间： 2024-10-29 21:00:27
品牌 Logo 应用领域
摩托罗拉 - MOTOROLA 局域网输出元件调节器
页数 文件大小 规格书
12页 206K
描述
Adjustable Positive Standard Regulator, 1.2V Min, 37V Max, BIPolar, PSFM3, PLASTIC, TO-220, 3 PIN

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LM317BT4 技术参数

生命周期：Transferred包装说明：TO-220,
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.62
最大差分输入-输出电压：40 V最小差分输入-输出电压：3 V
JESD-30 代码：R-PSFM-T3功能数量：1
端子数量：3工作温度TJ-Max：125 °C
工作温度TJ-Min：-40 °C最大输出电流 1：1.5 A
最大输出电压 1：37 V最小输出电压 1：1.2 V
封装主体材料：PLASTIC/EPOXY封装代码：TO-220
封装形状：RECTANGULAR封装形式：FLANGE MOUNT
认证状态：Not Qualified调节器类型：ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR
表面贴装：NO技术：BIPOLAR
端子形式：THROUGH-HOLE端子位置：SINGLE
Base Number Matches：1

LM317BT4 数据手册

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Order this document by LM317/D  
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.  
THREE–TERMINAL  
ADJUSTABLE POSITIVE  
VOLTAGE REGULATOR  
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  
• Output Current in Excess of 1.5 A  
• Output Adjustable between 1.2 V and 37 V  
• Internal Thermal Overload Protection  
• Internal Short Circuit Current Limiting Constant with Temperature  
• Output Transistor Safe–Area Compensation  
• Floating Operation for High Voltage Applications  
T SUFFIX  
PLASTIC PACKAGE  
CASE 221A  
2
• Available in Surface Mount D PAK, and Standard 3–Lead Transistor  
Heatsink surface  
connected to Pin 2.  
Package  
1
2
• Eliminates Stocking many Fixed Voltages  
3
Pin 1. Adjust  
2. V  
3. V  
out  
in  
Standard Application  
V
V
in  
out  
LM317  
D2T SUFFIX  
R
240  
1
PLASTIC PACKAGE  
CASE 936  
I
2
Adj  
1
Adjust  
2
(D PAK)  
+
3
C
*
µ
C
1.0  
**  
µ
in  
0.1  
O
F
F
R
2
Heatsink surface (shown as terminal 4 in  
case outline drawing) is connected to Pin 2.  
ORDERING INFORMATION  
Operating  
** C is required if regulator is located an appreciable distance from power supply filter.  
in  
** C is not needed for stability, however, it does improve transient response.  
O
Temperature Range  
Device  
LM317BD2T  
LM317BT  
LM317D2T  
LM317T  
Package  
R
2
Surface Mount  
Insertion Mount  
Surface Mount  
Insertion Mount  
V
1.25 V  
1
I
R
out  
2
Adj  
T = –40° to +125°C  
R
J
1
Since I  
is controlled to less than 100 µA, the error associated with this term is  
Adj  
negligible in most applications.  
T = 0° to +125°C  
J
Motorola, Inc. 1996  
Rev 1  
1234567...12

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