BU4821G-TR

Product Overview

Category: Integrated Circuit (IC)

Use: The BU4821G-TR is a versatile integrated circuit primarily used for voltage regulation and power management in electronic devices. It provides stable and reliable power supply to various components within a system.

Characteristics: - Voltage regulation - Power management - Compact size - High efficiency - Low power consumption

Package: The BU4821G-TR is available in a small outline package (SOP) which ensures easy integration into electronic circuits. The package is designed to provide thermal stability and protection to the IC.

Essence: The essence of the BU4821G-TR lies in its ability to regulate voltage and efficiently manage power, ensuring optimal performance and reliability of electronic devices.

Packaging/Quantity: The BU4821G-TR is typically packaged in reels or tubes, with each reel or tube containing a specific quantity of ICs. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

The BU4821G-TR has the following specifications:

• Input Voltage Range: 2.5V - 16V
• Output Voltage Range: 0.8V - 12V
• Maximum Output Current: 1A
• Operating Temperature Range: -40°C to 85°C
• Quiescent Current: 50µA (typical)
• Dropout Voltage: 200mV (typical)

Detailed Pin Configuration

The BU4821G-TR features a standard pin configuration with the following pins:

1. VIN: Input voltage pin
2. GND: Ground pin
3. VOUT: Output voltage pin
4. EN: Enable pin (used for controlling the IC's operation)
5. FB: Feedback pin (used for voltage regulation)

Functional Features

The BU4821G-TR offers the following functional features:

• Voltage regulation: It ensures a stable output voltage regardless of input voltage fluctuations.
• Overcurrent protection: The IC is equipped with built-in protection mechanisms to prevent damage from excessive current flow.
• Thermal shutdown: In case of overheating, the IC automatically shuts down to avoid thermal damage.
• Low power consumption: The BU4821G-TR operates efficiently, consuming minimal power during operation.

Advantages and Disadvantages

Advantages: - Compact size allows for easy integration into various electronic devices. - High efficiency results in reduced power wastage. - Wide input and output voltage range provides flexibility in different applications. - Built-in protection mechanisms enhance reliability and durability.

Disadvantages: - Limited maximum output current may not be suitable for high-power applications. - Operating temperature range may restrict usage in extreme environments.

Working Principles

The BU4821G-TR utilizes a combination of internal circuitry and feedback mechanisms to regulate voltage. It continuously monitors the output voltage and adjusts the internal circuitry to maintain a stable output within the specified range. This ensures that connected components receive a consistent and reliable power supply.

Detailed Application Field Plans

The BU4821G-TR finds applications in various fields, including but not limited to:

1. Consumer Electronics: Used in smartphones, tablets, and portable electronic devices for efficient power management.
2. Automotive: Integrated into automotive systems for voltage regulation and power distribution.
3. Industrial Automation: Employed in control systems and industrial equipment for reliable power supply.
4. Medical Devices: Utilized in medical equipment to ensure stable power delivery.

Detailed and Complete Alternative Models

1. LM317: A popular voltage regulator IC with adjustable output voltage and high current capability.
2. LM7805: A widely used fixed-output voltage regulator IC with a maximum output current of 1A.
3. LT1084: A high-performance linear voltage regulator IC with adjustable output voltage and low dropout voltage.

These alternative models offer similar functionality to the BU4821G-TR and can be considered as alternatives based on specific requirements.

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