• LM7912CT TO-220 (NDE)-3
LM7912CT TO-220 (NDE)-3

LM7912CT

LM7912CT is a fixed negative standard regulator with a voltage output of 12V

Quantity Unit Price(USD) Ext. Price
5 $0.209 $1.04
50 $0.170 $8.50
150 $0.153 $22.95
500 $0.133 $66.50
2000 $0.123 $246.00
5000 $0.117 $585.00

Inventory:8,370

*The price is for reference only.
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  • Part Number : LM7912CT

  • Package/Case : TO-220 (NDE)-3

  • Brands : TI

  • Components Categories : Voltage Regulators - Linear

  • Datesheet : LM7912CT DataSheet (PDF)

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Overview of LM7912CT

The LM7912CT is a voltage regulator IC that provides a fixed output voltage of -12V DC. It is part of the LM79XX series of voltage regulators, designed for use in a wide range of applications requiring a stable negative voltage supply.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

  • Input: Input voltage
  • GND: Ground connection
  • Output: Output voltage (-12V)

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the LM7912CT IC for a visual representation.

Key Features

  • Fixed Output Voltage: Provides a stable -12V output voltage, suitable for powering various components in electronic circuits.
  • Low Dropout Voltage: The LM7912CT has a low dropout voltage, ensuring efficient voltage regulation even when the input voltage is close to the output voltage.
  • Overheat Protection: Built-in thermal shutdown protection prevents the IC from overheating under excessive load conditions.
  • Short Circuit Protection: Offers short circuit protection, safeguarding the IC and connected components from damage in case of a short circuit.
  • Wide Operating Temperature Range: Operates reliably over a wide temperature range, making it suitable for use in various environmental conditions.

Note: For detailed technical specifications, please refer to the LM7912CT datasheet.

Application

  • Power Supply: Ideal for providing a stable -12V power supply in electronic circuits requiring negative voltage.
  • Audio Amplifiers: Used in audio amplifier circuits to provide the negative voltage rail.
  • Instrumentation: Suitable for use in instrumentation and measurement systems requiring a negative voltage reference.

Functionality

The LM7912CT is a voltage regulator IC that regulates the input voltage to a stable -12V output voltage. It ensures reliable operation of electronic circuits requiring a negative voltage supply.

Usage Guide

  • Input Voltage: Connect the input pin to the positive supply voltage.
  • Ground Connection: Connect the ground pin to the common ground of the circuit.
  • Output Voltage: The output pin provides a regulated -12V output voltage.

Frequently Asked Questions

Q: What is the maximum input voltage for the LM7912CT?
A: The LM7912CT can withstand a maximum input voltage of -35V.

Q: Can the LM7912CT handle high current loads?
A: The LM7912CT is capable of handling moderate current loads, but for higher current applications, external heatsinking may be required.

Equivalent

For similar functionalities, consider these alternatives to the LM7912CT:

  • LM7912CK: This is a TO-3 package version of the LM7912CT, suitable for applications requiring higher power dissipation.
  • LM7912CV: This is a surface mount version of the LM7912CT, offering similar voltage regulation capabilities in a smaller form factor.

LM7912CT

Specifications

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

Output options Fixed Output Iout (max) (A) 1.5
Vin (max) (V) -7 Vin (min) (V) -30
Vout (max) (V) -5 Vout (min) (V) -15
Fixed output options (V) -15, -12, -5 Noise (µVrms) 40
Iq (typ) (mA) 2 Thermal resistance θJA (°C/W) 60
Rating Catalog Load capacitance (min) (µF) 0.1
Regulated outputs (#) 1 Accuracy (%) 5
Dropout voltage (Vdo) (typ) (mV) 1100 Operating temperature range (°C) 0 to 125

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