TA78L12PF(TE85L,F)

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics:
  • Fixed Output Voltage: 12V
  • Low Dropout Voltage
  • High Ripple Rejection Ratio
  • Overcurrent Protection
• Package: TO-252-3 (DPAK)
• Essence: Linear Voltage Regulator
• Packaging/Quantity: Tape and Reel, 2,500 units per reel

Specifications

• Input Voltage Range: 14V to 35V
• Output Voltage: 12V ±4%
• Output Current: Up to 1A
• Dropout Voltage: 2V (typical)
• Quiescent Current: 5mA (typical)
• Line Regulation: 0.2% (typical)
• Load Regulation: 0.4% (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The TA78L12PF(TE85L,F) has three pins:

1. Input (VIN): Connects to the input voltage source.
2. Ground (GND): Connected to the ground reference.
3. Output (VOUT): Provides the regulated output voltage.

Functional Features

• Voltage Regulation: The TA78L12PF(TE85L,F) maintains a constant output voltage of 12V, regardless of changes in the input voltage or load conditions.
• Low Dropout Voltage: The regulator operates with a low dropout voltage, minimizing power dissipation and maximizing efficiency.
• Overcurrent Protection: The IC incorporates overcurrent protection, safeguarding the circuit from excessive current flow.
• High Ripple Rejection Ratio: The device exhibits high rejection of input voltage ripple, ensuring a stable output voltage.

Advantages and Disadvantages

Advantages: - Simple and compact design - Easy to use and integrate into various applications - Provides a stable and regulated output voltage - Overcurrent protection enhances circuit reliability

Disadvantages: - Limited output current capacity (up to 1A) - Requires an input voltage higher than the desired output voltage

Working Principles

The TA78L12PF(TE85L,F) is a linear voltage regulator that utilizes a series pass transistor to regulate the output voltage. It compares the feedback voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a constant output voltage.

Detailed Application Field Plans

The TA78L12PF(TE85L,F) finds applications in various electronic devices, including but not limited to: - Power supplies for microcontrollers and other digital circuits - Automotive electronics - Industrial control systems - Consumer electronics - Battery-powered devices requiring a stable 12V supply

Detailed and Complete Alternative Models

Some alternative models to the TA78L12PF(TE85L,F) include: - LM7812: A popular 12V linear voltage regulator from Texas Instruments. - MC7812: A 12V linear voltage regulator from ON Semiconductor. - L78L12ABD: A 12V positive voltage regulator from STMicroelectronics.

These alternatives offer similar functionality and can be used as replacements based on specific requirements.

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