Datasheet LM337 (ON Semiconductor)
| Hersteller | ON Semiconductor |
| Beschreibung | Voltage Regulator - Adjustable Output, Negative |
| Seiten / Seite | 11 / 1 — DATA SHEET. www.onsemi.com. THREE−TERMINAL. ADJUSTABLE NEGATIVE. VOLTAGE … |
| Dateiformat / Größe | PDF / 266 Kb |
| Dokumentensprache | Englisch |
DATA SHEET. www.onsemi.com. THREE−TERMINAL. ADJUSTABLE NEGATIVE. VOLTAGE REGULATOR. MARKING. DIAGRAMS. D2PAK. D2T SUFFIX. CASE 936
Modelllinie für dieses Datenblatt
Textversion des Dokuments
link to page 8
DATA SHEET www.onsemi.com
Voltage Regulator - Adjustable Output,
THREE−TERMINAL
Negative
ADJUSTABLE NEGATIVE VOLTAGE REGULATOR
1.5 A
MARKING
LM337
DIAGRAMS
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 LM −1.2 V to −37 V. This voltage regulator is exceptionally easy to use
D2PAK
337yyyy and requires only two external resistors to set the output voltage.
D2T SUFFIX
AWLYWWG Further, it employs internal current limiting, thermal shutdown and
CASE 936
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 Heatsink surface (shown as terminal 4 in output regulator, or by connecting a fixed resistor between the case outline drawing) is connected to Pin 2. adjustment and output, the LM337 can be used as a precision current Pin 1. Adjust regulator. 2. Vin 3. Vout
Features
• Output Current in Excess of 1.5 A • Output Adjustable between −1.2 V and −37 V • Internal Thermal Overload Protection
TO−220AB
•
T SUFFIX
Internal Short Circuit Current Limiting Constant with Temperature
CASE 221AB
• LM Output Transistor Safe−Area Compensation Heatsink surface 337xx • Floating Operation for High Voltage Applications connected to Pin 2. AWLYWWG • Eliminates Stocking many Fixed Voltages • 1 Available in Surface Mount D2PAK and Standard 3−Lead Transistor Package • These Devices are Pb−Free and are RoHS Compliant xx = BT, T yyyy = BD2T, D2T A = Assembly Location WL = Wafer Lot IPROG Y = Year WW = Work Week + R2 + G = Pb−Free Package Cin* CO** 1.0 mF R 1.0 1 mF 120
ORDERING INFORMATION
IAdj See detailed ordering and shipping information in the package dimensions section on page 8 of this data sheet. Vin Vout -V
LM337
in -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 stability. A 1.0 mF solid tantalum or 10 mF aluminum electrolytic **is recommended. ǒ R Ǔ V 2 out + –1.25V 1 ) R1
Figure 1. Standard Application
© Semiconductor Components Industries, LLC, 2015
1
Publication Order Number:
October, 2021 − Rev. 11 LM337/D
DATA SHEET www.onsemi.com
Voltage Regulator - Adjustable Output,
THREE−TERMINAL
Negative
ADJUSTABLE NEGATIVE VOLTAGE REGULATOR
1.5 A
MARKING
LM337
DIAGRAMS
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 LM −1.2 V to −37 V. This voltage regulator is exceptionally easy to use
D2PAK
337yyyy and requires only two external resistors to set the output voltage.
D2T SUFFIX
AWLYWWG Further, it employs internal current limiting, thermal shutdown and
CASE 936
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 Heatsink surface (shown as terminal 4 in output regulator, or by connecting a fixed resistor between the case outline drawing) is connected to Pin 2. adjustment and output, the LM337 can be used as a precision current Pin 1. Adjust regulator. 2. Vin 3. Vout
Features
• Output Current in Excess of 1.5 A • Output Adjustable between −1.2 V and −37 V • Internal Thermal Overload Protection
TO−220AB
•
T SUFFIX
Internal Short Circuit Current Limiting Constant with Temperature
CASE 221AB
• LM Output Transistor Safe−Area Compensation Heatsink surface 337xx • Floating Operation for High Voltage Applications connected to Pin 2. AWLYWWG • Eliminates Stocking many Fixed Voltages • 1 Available in Surface Mount D2PAK and Standard 3−Lead Transistor Package • These Devices are Pb−Free and are RoHS Compliant xx = BT, T yyyy = BD2T, D2T A = Assembly Location WL = Wafer Lot IPROG Y = Year WW = Work Week + R2 + G = Pb−Free Package Cin* CO** 1.0 mF R 1.0 1 mF 120
ORDERING INFORMATION
IAdj See detailed ordering and shipping information in the package dimensions section on page 8 of this data sheet. Vin Vout -V
LM337
in -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 stability. A 1.0 mF solid tantalum or 10 mF aluminum electrolytic **is recommended. ǒ R Ǔ V 2 out + –1.25V 1 ) R1
Figure 1. Standard Application
© Semiconductor Components Industries, LLC, 2015
1
Publication Order Number:
October, 2021 − Rev. 11 LM337/D