Onsemi LM337BTG Adjustable Negative Voltage Regulator 1.5A TO-220AB

The Onsemi LM337BTG is an adjustable negative voltage regulator capable of supplying in excess of 1.5A, with an output range from -1.2V to -37V. It requires only two external resistors to set the desired output voltage, which simplifies circuit design and reduces component count.

Key Features

• Adjustable negative output voltage from -1.2V to -37V
• Output current capability in excess of 1.5A
• Requires only two external resistors to set the output voltage
• Internal current limiting and thermal shutdown
• Output transistor safe-area compensation
• Floating operation suited to high-voltage applications
• TO-220AB package with 3 pins for through-hole mounting
• Operating temperature range of -40°C to 125°C

Protection and Operation

The device incorporates internal current limiting and thermal shutdown to safeguard it against overload conditions. Output transistor safe-area compensation is also included. Its floating operation capability offers flexibility in more complex power supply designs, particularly in high-voltage applications.

Applications

The LM337BTG serves a range of electronic design roles. It is suitable for local, on-card regulation, which can help improve system stability and noise immunity. Its adjustable nature allows it to be configured as a programmable output regulator. By connecting a fixed resistor between the adjustment and output terminals, it can also be used as a precision current regulator in constant-current source circuits.

Physical Details

The LM337BTG is supplied in a TO-220AB package with three pins for through-hole mounting and is designed to be attached to a heat sink. Listed dimensions are width 3.3, depth 1.5 and height 4.3, with a weight of 2.041 gm. The specified operating temperature range suits demanding industrial environments.

Choose the Onsemi LM337BTG when you need an adjustable negative voltage regulator for power management circuits requiring a 1.5A output and an output range from -1.2V to -37V.