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LM337BD2TG Folha de dados(PDF) 1 Page - ON Semiconductor |
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LM337BD2TG Folha de dados(HTML) 1 Page - ON Semiconductor |
1 / 10 page © Semiconductor Components Industries, LLC, 2006 August, 2006 − Rev. 6 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 • Pb−Free Packages are Available Standard Application Vout + –1.25V 1 ) R 2 R 1 *C in 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. **C O 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 8 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 http://onsemi.com D2PAK D2T SUFFIX CASE 936 Heatsink surface (shown as terminal 4 in case outline drawing) is connected to Pin 2. 1 LM 337yyyy AWLYWWG |
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