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LM337/D

更新时间： 2024-11-19 23:46:59
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其他 - ETC 稳压器
页数 文件大小 规格书
12页 114K
描述
Three-Terminal Adjustable Output Negative Voltage Regulator

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中文翻译

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LM337/D 数据手册

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ON Semiconductort  
LM337  
Three-Terminal Adjustable  
Output Negative Voltage  
Regulator  
THREE–TERMINAL  
ADJUSTABLE NEGATIVE  
VOLTAGE REGULATOR  
The LM337 is an adjustable 3–terminal negative 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 LM337 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 LM337 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  
connected to Pin 2.  
• Internal Short Circuit Current Limiting Constant with Temperature  
• Output Transistor Safe–Area Compensation  
• Floating Operation for High Voltage Applications  
• Eliminates Stocking many Fixed Voltages  
1
2
3
2
Pin 1. Adjust  
• Available in Surface Mount D PAK and Standard 3–Lead Transistor  
2. V  
3. V  
in  
Package  
out  
Standard Application  
D2T SUFFIX  
PLASTIC PACKAGE  
CASE 936  
I
PROG  
2
2
1
(D PAK)  
3
R
2
+
+
C *  
in  
C **  
O
1.0 µF  
R
1
1.0 µF  
120  
Heatsink surface (shown as terminal 4 in  
case outline drawing) is connected to Pin 2.  
I
Adj  
V
in  
V
out  
LM337  
-V  
in  
-V  
out  
ORDERING INFORMATION  
Operating  
*āC is required if regulator is located more than 4 inches from power supply filter.  
*āA 1.0 µF solid tantalum or 10 µF aluminum electrolytic is recommended.  
in  
Temperature Range  
Device  
LM337BD2T  
LM337BT  
LM337D2T  
LM337T  
Package  
Surface Mount  
Insertion Mount  
Surface Mount  
Insertion Mount  
T = –40° to +125°C  
**āC is necessary for stability. A 1.0 µF solid tantalum or 10 µF aluminum electrolytic  
J
O
**āis recommended.  
R
2
T = 0° to +125°C  
J
Ă +Ă ć1.25ĂVĂǒ1 ) Ǔ  
V
out  
R
1
Semiconductor Components Industries, LLC, 2001  
1
Publication Order Number:  
March, 2001 – Rev. 2  
LM337/D  
1234567...12

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