LM337IMP

Standard Regulator Neg -1.2V to -37V 1.5A 4-Pin(3+Tab) SOT-223 T/R
6,620 Effective Inventory

LM337IMP

Effective Inventory6,620

Standard Regulator Neg -1.2V to -37V 1.5A 4-Pin(3+Tab) SOT-223 T/R

  • Manufacturer Part # : LM337IMP

  • Package/Case: SOT223-4

  • Brand: Texas Instruments

  • Product Categories : Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Quality Assurance

Quality Assurance

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Certification

We have successfully obtained various certification standards and have established our own professional testing laboratory. This ensures that every product we supply to our customers meets the highest quality standards. We adhere to strict testing protocols to maintain the consistency and accuracy of our products. To ensure that our products are original and genuine, we also collaborate with reputable third-party testing facilities to conduct rigorous quality testing. Our commitment to quality extends to meeting industry, legal, regulatory, and ISO 9001:2015 requirements.

Shipping & Payment

Shipping & Payment

About Shipping

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Service & Packaging

Service & Packaging

About After Sales Service

All Parts Extended Quality Guarantee

Initiate the application within 90 days from the shipment date.

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LM337IMP DataSheet

Pricing (USD)

Quantity Unit Price Ext. Price
1 $2.029 $2.03
200 $0.785 $157.00
500 $0.759 $379.50
1000 $0.745 $745.00

These prices are subject to market fluctuations, and a quote submission is required to obtain the latest prices.

Rapid Quote

Please submit RFQ for LM337IMP or email to us: Email: [email protected], we will contact you in 12 hours.

Details

The LM337IMP is a versatile voltage regulator that offers precise and adjustable negative voltage output capabilities for a variety of electronic applications. With a maximum output current of 1.5A, this three-terminal device allows for voltage adjustment within a wide range of -1.2V to -37V. Its internal current limiting and thermal shutdown protection features ensure operational safety and reliability, protecting it from potential damage due to overloads or excessive heat generation. The TO-220 package design promotes efficient heat dissipation, enhancing the device's overall performance and longevity

LM337IMP

Key Features

  • The LM337IMP features thermal overload protection and short-circuit protection.
  • The maximum output current is 5A
  • Output voltage capability is -37V
  • The device comes in an SOT-223 package

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

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

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification LM337IMP PDF Download

FAQs

What is LM337IMP?

The LM337IMP is a negative voltage regulator IC manufactured by Texas Instruments. It is designed to provide a regulated negative output voltage, making it suitable for applications requiring a negative power supply, such as dual power supply systems, analog circuits, and audio amplifiers.

How Does LM337IMP Work?

The LM337IMP operates as a negative voltage regulator, providing a stable and regulated negative output voltage. The IC compares the actual output voltage to a reference voltage and adjusts the current flowing through the regulator to maintain a constant output voltage regardless of load variations. It helps ensure a reliable and steady negative supply voltage for connected components.

How Many Pins does LM337IMP have and What are the Functions of the Pinout Configuration?

The LM337IMP is housed in a 3-pin SOT-223 package. The pinout configuration includes:

  • Input (VIN): Input voltage pin. It is the unregulated input voltage that needs to be regulated to a negative output.
  • Output (VOUT): Regulated negative output voltage pin.
  • Adjust (ADJ): Adjustment pin for setting the output voltage or connecting a bypass capacitor for stability.

What are the Pros and Cons of LM337IMP?

Pros:

  • Provides Negative Voltage: Ideal for applications requiring a negative power supply.
  • Regulated Output: Maintains a stable and constant negative output voltage.
  • Simple Design: Easy to use with minimal external components required for operation.
  • Thermal Shutdown Protection: Built-in thermal shutdown feature protects the IC from overheating.
  • Cost-Effective: Offers a cost-effective solution for generating negative voltage rails.

Cons:

  • Heat Dissipation: May require a heat sink for high power dissipation applications to prevent overheating.
  • Dropout Voltage: Has a certain dropout voltage that needs to be considered for the input voltage selection.
  • Load Regulation: Performance may vary based on the load variations and current requirements.

Are There Any Equivalents/Alternatives to LM337IMP for Recommendation?

  • Alternatives to the LM337IMP include the LM7905 from Texas Instruments and the LT1963A from Analog Devices as negative voltage regulators.
  • The LM337T from Texas Instruments is another variant of the LM337 series that comes in a TO-220 package.

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