LM337BT

The LM337BT Linear Voltage Regulator offers a flexible and efficient means of regulating voltage, with an output range spanning from -1
7,325 Effective Inventory

LM337BT

Effective Inventory7,325

The LM337BT Linear Voltage Regulator offers a flexible and efficient means of regulating voltage, with an output range spanning from -1

  • Manufacturer Part # : LM337BT

  • Package/Case: TO-220-3

  • Brand: Onsemi

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

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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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LM337BT DataSheet
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Rapid Quote

Please submit RFQ for LM337BT or email to us: Email: [email protected], we will contact you in 12 hours.

Details

The LM337BT is a versatile voltage regulator with robust features designed to meet the demands of various industrial and automotive applications. With an adjustable output current of up to 1.5A and a wide voltage range of -1.2V to -37V, this three-terminal integrated circuit offers flexible power supply solutions

Key Features

  • Adjustable output voltage
  • Output current up to 1.5A
  • Thermal overload protection
  • Short circuit protection
  • Output voltage range from -1.2V to -37V
  • Operates with input voltages down to -40V

Application

  • Power supplies
  • Industrial and automotive applications
  • Adjustable voltage regulators
  • Bias supplies
  • Voltage regulators for electronic equipment
  • Instrumentation
  • Audio amplifiers
  • DC motor controllers
  • Battery chargers
  • LED drivers

Specifications

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

Rohs Code No Part Life Cycle Code Obsolete
Part Package Code SFM Pin Count ! 3
Reach Compliance Code not_compliant ECCN Code EAR99
HTS Code ! 8542.39.00.01 Adjustability ADJUSTABLE
Dropout Voltage1-Nom 3 V Input-Output Voltage Differential-Max 40 V
Input-Output Voltage Differential-Min 3 V JESD-30 Code R-PSFM-T3
JESD-609 Code e0 Line Regulation-Max (%/V) 0.07
Load Regulation-Max(%) 1.5% Number of Functions 1
Number of Outputs 1 Number of Terminals 3
Operating Temperature TJ-Max 125 °C Operating Temperature TJ-Min -40 °C
Output Current1-Max 1.5 A Output Voltage1-Max 37 V
Output Voltage1-Min 1.2 V Package Body Material PLASTIC/EPOXY
Package Code TO-220 Package Equivalence Code SIP3,.1TB
Package Shape RECTANGULAR Package Style FLANGE MOUNT
Packing Method RAIL Peak Reflow Temperature (Cel) 235
Qualification Status ! Not Qualified Regulator Type ADJUSTABLE NEGATIVE SINGLE OUTPUT STANDARD REGULATOR
Surface Mount ! NO Technology BIPOLAR
Terminal Finish TIN LEAD Terminal Form ! THROUGH-HOLE
Terminal Pitch ! 2.54 mm Terminal Position SINGLE
Time@Peak Reflow Temperature-Max (s) 30

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 LM337BT PDF Download

FAQs

What is LM337BT?

The LM337BT is a 3-terminal adjustable negative voltage regulator integrated circuit (IC) manufactured by Texas Instruments. It is designed to provide a constant, adjustable negative voltage output for a wide range of applications, including power supplies, battery chargers, and voltage references.

How Does LM337BT Work?

The LM337BT operates by using an adjustable voltage reference to compare the desired output voltage with the actual output. It then adjusts the output voltage by controlling the current flow through an external resistor. This enables the IC to provide a stable and accurate negative voltage output, even with varying load conditions and input voltages.

How Many Pins does LM337BT have and What are the Functions of the Pinout Configuration?

The LM337BT is available in a 3-lead TO-220 package. The pinout configuration includes:

  • Input (Vin): The input voltage pin.
  • Output (Vout): The regulated output voltage pin.
  • Adjust (Adj): The adjustment pin that allows for the external resistor connection to adjust the output voltage.

What are the Pros and Cons of LM337BT?

Pros:

  • Adjustable Output: Provides flexibility to set the desired output voltage.
  • Short Circuit Protection: Includes built-in short-circuit current limiting and thermal shutdown protection.
  • Wide Voltage Range: Can accommodate a wide range of input voltages for regulating the output.
  • Simple External Circuitry: Requires minimal external components for operation.
  • High Output Current: Capable of delivering higher output currents, depending on the external components.

Cons:

  • Heat Dissipation: May require a heat sink for high-power dissipation applications.
  • Adjustment Range: The adjustable output may be limited by the IC's specifications and external components.
  • Regulation Accuracy: May have specific requirements for stability and line regulation.

Are There Any Equivalents/Alternatives to LM337BT for Recommendation?

  • The LM337 from Texas Instruments is a similar adjustable negative voltage regulator.
  • Alternatives to the LM337BT include the UA79M12 from Fairchild Semiconductor and the L7912CV from STMicroelectronics.

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