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LM337D2TR4G Fiches technique(PDF) 1 Page - ON Semiconductor

No de pièce LM337D2TR4G
Description  1.5 A, Adjustable Output Negative Voltage Regulator
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Fabricant  ONSEMI [ON Semiconductor]
Site Internet  http://www.onsemi.com
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© Semiconductor Components Industries, LLC, 2015
January, 2015 − Rev. 10
1
Publication Order Number:
LM337/D
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.
Features
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
Eliminates Stocking many Fixed Voltages
Available in Surface Mount D2PAK and Standard 3−Lead Transistor
Package
These Devices are Pb−Free and are RoHS Compliant
Figure 1. Standard Application
Vout + –1.25V 1 )
R
2
R
1
*Cin is required if regulator is located more than 4 inches from power supply filter.
* A 1.0
mF solid tantalum or 10 mF aluminum electrolytic is recommended.
**CO is necessary for stability. A 1.0 mF solid tantalum or 10 mF aluminum electrolytic
** is recommended.
LM337
IPROG
Cin*
1.0
mF
+
-Vin
Vin
Vout
-Vout
CO**
1.0
mF
+
IAdj
R1
120
R2
THREE−TERMINAL
ADJUSTABLE NEGATIVE
VOLTAGE REGULATOR
TO−220AB
T SUFFIX
CASE 221AB
1
MARKING
DIAGRAMS
LM
337xx
AWLYWWG
Pin 1. Adjust
2. Vin
3. Vout
Heatsink surface
connected to Pin 2.
See detailed ordering and shipping information in the package
dimensions section on page 9 of this data sheet.
ORDERING INFORMATION
xx
= BT, T
yyyy
= BD2T, D2T
A
= Assembly Location
WL
= Wafer Lot
Y
= Year
WW
= Work Week
G
= Pb−Free Package
www.onsemi.com
D2PAK
D2T SUFFIX
CASE 936
Heatsink surface (shown as terminal 4 in
case outline drawing) is connected to Pin 2.
LM
337yyyy
AWLYWWG


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