DATA SHEET www.onsemi.com
Voltage Regulator Adjustable Output, Negative
1.5 A
LM337
The LM337 is an adjustable 3−termin...
DATA SHEET www.onsemi.com
Voltage
Regulator Adjustable Output, Negative
1.5 A
LM337
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
IPROG
Cin*
+
1.0 mF
IAdj
R2
R1 120
CO** + 1.0 mF
Vin
Vout
-Vin
LM337
-Vout
* 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 ...