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Negative Adjustable Regulator

LM337IMP/NOPB General Description

The LM337IMP/NOPB is a three-terminal adjustable negative voltage regulator capable of providing output voltages from -1.2V to -37V at currents up to 100mA. It is manufactured by Texas Instruments and comes in an SOT-223 package. The device requires only two external resistors to set the output voltage, making it easy to use in various applications. Its adjustable output voltage makes it suitable for use in many different circuits where a negative voltage reference is required. The LM337IMP/NOPB features thermal overload protection and short-circuit current limiting to ensure reliable operation under various conditions. With its wide operating temperature range and low dropout voltage, it is commonly used in power supply circuits, voltage regulators, and voltage reference applications.

Key Features

  • Adjustable voltage regulator
  • Output voltage range from -1.2V to -37V
  • Load regulation of 0.1%
  • Line regulation of 0.01%
  • Output voltage accuracy of ±3%
  • Maximum output current of 1.5A
  • Thermal shutdown and short-circuit protection
  • Adjustable current limit
  • Application

    • Precision voltage output
    • Reliable circuit protection
    • Adjustable current limit


    Output options Adjustable Output Iout (max) (A) 1.5
    Vin (max) (V) -4.2 Vin (min) (V) -40
    Vout (max) (V) -1.2 Vout (min) (V) -37
    Noise (µVrms) 38 Iq (typ) (mA) 0.065
    Thermal resistance θJA (°C/W) 23 Rating Catalog
    Load capacitance (min) (µF) 1 Regulated outputs (#) 1
    Accuracy (%) 2.4 PSRR at 100 KHz (dB) 35
    Dropout voltage (Vdo) (typ) (mV) 2400 Operating temperature range (°C) -40 to 125, 0 to 125

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