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LM337_06 PDF预览

LM337_06

更新时间: 2024-11-20 04:44:27
品牌 Logo 应用领域
安森美 - ONSEMI 稳压器
页数 文件大小 规格书
10页 134K
描述
1.5 A, Adjustable Output, Negative Voltage Regulator

LM337_06 数据手册

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C
O
                                            
LM337  
1.5 A, Adjustable Output,  
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.  
http://onsemi.com  
THREE−TERMINAL  
ADJUSTABLE NEGATIVE  
VOLTAGE REGULATOR  
MARKING  
DIAGRAMS  
Features  
Output Current in Excess of 1.5 A  
Output Adjustable between −1.2 V and 37 V  
Internal Thermal Overload Protection  
LM  
337yyyy  
AWLYWWG  
2
D PAK  
Internal Short Circuit Current Limiting Constant with Temperature  
Output Transistor Safe−Area Compensation  
Floating Operation for High Voltage Applications  
Eliminates Stocking many Fixed Voltages  
D2T SUFFIX  
CASE 936  
1
2
Available in Surface Mount D PAK and Standard 3−Lead Transistor  
Heatsink surface (shown as terminal 4 in  
case outline drawing) is connected to Pin 2.  
Package  
Pb−Free Packages are Available  
Pin 1. Adjust  
2. V  
3. V  
in  
out  
Standard Application  
TO−220AB  
T SUFFIX  
I
PROG  
CASE 221AB  
LM  
337xx  
AWLYWWG  
R
2
+
+
Heatsink surface  
connected to Pin 2.  
C *  
in  
C **  
O
1.0 mF  
R
1
1.0 mF  
120  
1
I
Adj  
xx  
= BT, T  
V
in  
V
out  
yyyy = BD2T, D2T  
A
LM337  
−V  
in  
−V  
out  
= Assembly Location  
WL = Wafer Lot  
Y
= Year  
WW = Work Week  
= Pb−Free Package  
*C is required if regulator is located more than 4 inches from power supply filter.  
in  
*A 1.0 mF solid tantalum or 10 mF aluminum electrolytic is recommended.  
G
** is necessary for stability. A 1.0 mF solid tantalum or 10 mF aluminum electrolytic  
**is recommended.  
ORDERING INFORMATION  
See detailed ordering and shipping information in the package  
dimensions section on page 8 of this data sheet.  
R
2
+ꢀ –1.25ꢀVꢀǒ1 ) Ǔ  
V
out  
R
1
© Semiconductor Components Industries, LLC, 2006  
1
Publication Order Number:  
August, 2006 − Rev. 6  
LM337/D  

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