Texas Instruments LM337 Adjustable Negative Voltage Regulator SOIC-8 100mA

Texas Instruments LM337 Adjustable Negative Voltage Regulator provides a stable output current of 100mA across an adjustable output voltage range from -1.2V to -37V.

Overview

The Texas Instruments LM337LM/NOPB is an adjustable 3-terminal negative voltage regulator. It requires only two external resistors to set the desired output voltage, which makes it straightforward to integrate into designs. Compared with fixed regulators, it offers enhanced performance and includes comprehensive overload protection. The built-in current limit, thermal overload protection and safe area protection support robust operation under demanding conditions. All protection circuitry remains fully functional even when the adjustment terminal is disconnected.

Key Features

• Adjustable output from -1.2V to -37V
• 100mA maximum output current
• Full overload protection (current limit, thermal, safe area)
• Constant current limit with temperature
• Typical line regulation of 0.01%/V
• Typical load regulation of 0.1%
• Floating design, where only the input-to-output differential voltage is applied
• Eliminates the need to stock many fixed voltages
• Green product with no Sb/Br

Application Flexibility

The regulator accepts input voltages from -4.2V to -40V and is housed in an 8-pin SOIC package for surface mounting. It operates across a temperature range from -25°C to 100°C, making it suitable for industrial and power management applications. Typically, a single 1μF solid tantalum output capacitor is required. An input bypass is recommended if the device is located more than 6 inches from the input filter capacitors. For improved transient response or higher ripple rejection, a larger output capacitor or a bypassed adjustment terminal can be used.

Specifications

• Output Type: Adjustable
• Output Voltage Range: -1.2V to -37V
• Maximum Output Current: 100mA
• Input Voltage Range: -4.2V to -40V
• Line Regulation: 0.01%/V (typical)
• Load Regulation: 0.1% (typical)
• Package: 8-pin SOIC, surface mount
• Operating Temperature Range: -25°C to 100°C

Choose the Texas Instruments LM337 Adjustable Negative Voltage Regulator when you need an adjustable negative output from -1.2V to -37V at 100mA with built-in overload protection in a compact surface-mount package.