LM337IMP

Effective Inventory6,620

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

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LM337IMP DataSheet

Pricing (USD)

Quantity Unit Price Ext. Price
1 $1.968 $1.97
200 $0.761 $152.20
500 $0.736 $368.00
1000 $0.722 $722.00

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

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

LM337IMP Details

The LM337IMP is a negative voltage regulator from Texas Instruments, designed for reliable voltage regulation in various applications. This device features adjustable output voltage, thermal overload protection, and short-circuit protection, making it suitable for industrial, automotive, and consumer electronics applications.

Key Features

  • Adjustable Output Voltage: The LM337IMP offers adjustable output voltage for flexible application usage.
  • Thermal Overload Protection: This device features thermal overload protection to prevent damage from overheating.
  • Short-Circuit Protection: The LM337IMP includes short-circuit protection to ensure reliable operation in the event of a fault.

Applications

  • Industrial Applications: Suitable for industrial applications requiring adjustable output voltage and thermal overload protection.
  • Automotive Systems: Ideal for automotive systems where short-circuit protection and reliable voltage regulation are critical.
  • Consumer Electronics: Used in consumer electronics applications where adjustable output voltage and thermal overload protection are important.

Where to Use

The LM337IMP is suitable for applications that require adjustable output voltage, thermal overload protection, and short-circuit protection. It is ideal for systems where reliable voltage regulation is critical, such as in industrial, automotive, and consumer electronics environments.

How to Use

Connect the LM337IMP to your power supply by wiring the input pins to the respective voltage sources. Ensure proper output connections for the regulated voltage. Use the adjustment pin to set the desired output voltage. For detailed usage instructions, refer to the datasheet.

Application Circuit

The application circuit diagram for the LM337IMP illustrates how to connect the regulator to a power supply and load. It includes connections for input and output pins, ensuring proper operation and reliable voltage regulation.

(Tip: For detailed circuit diagram connections and usage guide, refer to the datasheet.)

Complementary

The LM337IMP can be complemented by other voltage regulators or power management ICs that offer additional features such as higher current handling, precision voltage regulation, or specialized functions for specific applications.

When selecting complementary components, ensure that their features and specifications align with your specific application requirements for optimal performance and compatibility.

Frequently Asked Questions

Q: What is the maximum output current of the LM337IMP?

A: The LM337IMP has a maximum output current of 1A. For more details, refer to the datasheet for specific operating conditions and limitations.

Q: Can the LM337IMP be used in automotive applications?

A: Yes, the LM337IMP is suitable for automotive applications where reliable voltage regulation and thermal overload protection are critical.

LM337IMP

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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