PB137ACV

Product Overview

Category: Electronic Component
Use: Voltage Regulator
Characteristics: High precision, low dropout voltage, compact size
Package: TO-220
Essence: Integrated circuit voltage regulator
Packaging/Quantity: 1 piece per package

Specifications

• Input Voltage Range: 4.5V to 25V
• Output Voltage Range: 1.2V to 20V
• Dropout Voltage: 0.6V at 1A
• Maximum Output Current: 1.5A
• Line Regulation: ±0.02%
• Load Regulation: ±0.04%
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The PB137ACV has three pins:

1. Input (VIN): This pin is used to connect the input voltage source.
2. Output (VOUT): This pin provides the regulated output voltage.
3. Ground (GND): This pin is connected to the ground reference.

Functional Features

• High precision voltage regulation
• Low dropout voltage for efficient power conversion
• Overcurrent and thermal protection
• Fast transient response
• Short-circuit protection

Advantages and Disadvantages

Advantages: - High precision voltage regulation ensures stable output. - Low dropout voltage minimizes power dissipation. - Compact size allows for easy integration into various applications. - Overcurrent and thermal protection enhance reliability.

Disadvantages: - Limited maximum output current of 1.5A. - Input voltage range may not be suitable for all applications.

Working Principles

The PB137ACV is an integrated circuit voltage regulator that maintains a constant output voltage regardless of changes in the input voltage or load conditions. It utilizes a feedback mechanism to continuously adjust the internal pass transistor, ensuring the output voltage remains within the specified range. The dropout voltage is minimized to reduce power dissipation and improve efficiency.

Detailed Application Field Plans

The PB137ACV is commonly used in various electronic devices and systems that require a stable and regulated power supply. Some typical application fields include:

1. Consumer Electronics: Used in smartphones, tablets, and portable media players to regulate battery voltage.
2. Automotive: Integrated into automotive electronics for voltage regulation in audio systems, lighting, and control modules.
3. Industrial Automation: Employed in industrial control systems, motor drives, and power supplies to maintain stable voltages.
4. Telecommunications: Utilized in telecom equipment such as routers, switches, and base stations for reliable power regulation.
5. Medical Devices: Incorporated into medical instruments and equipment to ensure precise and stable power delivery.

Detailed and Complete Alternative Models

1. LM317: A popular adjustable voltage regulator with similar characteristics and package.
2. LT1084: Offers higher maximum output current and lower dropout voltage.
3. LM7805: Fixed 5V voltage regulator commonly used in low-power applications.

These alternative models provide similar functionality and can be considered based on specific requirements.

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