Texas Instruments LM337IMPX Negative Adjustable Linear Voltage Regulator
Texas Instruments LM337IMPX adjustable negative voltage regulator, -1.5 A output, -1.25 V to -37 V. Includes current limiting and thermal shutdown.
Texas Instruments LM337IMPX Negative Adjustable Linear Voltage Regulator provides up to -1.5 A of output current across an adjustable output voltage range of -1.25 V to -37 V.
Overview
The LM337IMPX is an adjustable 3-terminal negative linear voltage regulator designed for simplicity and reliability. Only two external resistors are needed to set the precise output voltage, along with a single output capacitor for frequency compensation. Its circuit design provides voltage regulation with minimal thermal transients, supporting stable power delivery to sensitive electronic circuits.
Key Features
The regulator includes built-in protection to support operational safety. Internal current limiting, thermal shutdown and safe-area compensation help it withstand overload conditions. A ripple rejection of 77 dB helps filter input noise, while a typical line regulation of 0.01%/V and a load regulation of 0.3% support a steady output when input voltage or load demand changes. The device is manufactured without antimony or brominated flame retardants (no Sb/Br).
Applications
As the negative-voltage counterpart to the LM117 and LM317 positive regulators, the LM337IMPX is suited to creating symmetrical power supplies. It is intended for industrial and commercial power management, including:
- Automation and process control systems
- Building automation and management networks
- Communications and networking equipment
- Sensing devices
Specifications
- Output current: -1.5 A
- Output voltage range: -1.25 V to -37 V
- Dimensions (width, depth, height): 3.3, 1.5, 4.3
- Weight: 1 g
Choose the Texas Instruments LM337IMPX when you need an adjustable negative voltage regulator for symmetrical power supply designs and industrial or commercial power management.
- Automation and process control systems
- Building automation and management networks
- Communications and networking equipment
- Sensing devices
- Output Current: -1.5 A
- Output Voltage Range: -1.25 V to -37 V
- Ripple Rejection: 77 dB
- Line Regulation: 0.01%/V (Typical)
- Load Regulation: 0.3%
- Special Feature: Internal current limiting
- Special Feature: Thermal shutdown
- Special Feature: Safe-area compensation
- Environmental: Manufactured without antimony or brominated flame retardants (no Sb/Br)
- Width: 3.3
- Depth: 1.5
- Height: 4.3
- Weight: 1 g
Always follow local regulations and product guidance.
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