BU4833G-TR

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - High output current capability - Thermal shutdown protection - Overcurrent protection - Short-circuit protection

Package: TO-252-5L (DPAK)

Essence: The BU4833G-TR is a voltage regulator IC designed to provide a stable output voltage for various electronic devices.

Packaging/Quantity: The BU4833G-TR is typically packaged in reels containing 2,500 units.

Specifications

• Input Voltage Range: 2.5V - 6.0V
• Output Voltage Range: 1.2V - 5.0V
• Output Current: Up to 3A
• Dropout Voltage: 0.25V @ 1A
• Quiescent Current: 100µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The BU4833G-TR has the following pin configuration:

1. VIN (Input Voltage)
2. GND (Ground)
3. EN (Enable)
4. VOUT (Output Voltage)
5. NC (No Connection)

Functional Features

• Low Dropout Voltage: The BU4833G-TR exhibits a low dropout voltage, ensuring efficient regulation even when the input voltage is close to the desired output voltage.
• High Output Current Capability: With a maximum output current of 3A, this voltage regulator can power a wide range of electronic devices.
• Thermal Shutdown Protection: The IC incorporates thermal shutdown protection, which prevents damage due to excessive temperature.
• Overcurrent Protection: It features overcurrent protection, safeguarding the circuit from excessive current flow.
• Short-Circuit Protection: The BU4833G-TR includes short-circuit protection, preventing damage in case of a short circuit.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient regulation. - High output current capability allows for powering various devices. - Thermal shutdown, overcurrent, and short-circuit protections enhance reliability.

Disadvantages: - Limited input voltage range (2.5V - 6.0V). - Quiescent current of 100µA may be relatively high for certain low-power applications.

Working Principles

The BU4833G-TR operates as a linear voltage regulator. It regulates the output voltage by maintaining a constant voltage drop across its internal pass transistor. The feedback mechanism compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain the desired output voltage.

Detailed Application Field Plans

The BU4833G-TR is commonly used in various electronic devices that require a stable and regulated power supply. Some typical application fields include:

1. Mobile Devices: Smartphones, tablets, portable media players.
2. Computer Peripherals: USB hubs, external hard drives, printers.
3. Consumer Electronics: Set-top boxes, gaming consoles, audio amplifiers.
4. Automotive Electronics: Infotainment systems, navigation devices, dashboard displays.
5. Industrial Equipment: Test and measurement instruments, control systems, motor drivers.

Detailed and Complete Alternative Models

1. LM1117-3.3: A popular alternative with similar specifications and pin configuration.
2. LT1084CP-5: Offers higher output current capability and wider input voltage range.
3. TPS7A4700: Provides ultra-low dropout voltage and adjustable output voltage.

These alternative models can be considered based on specific requirements and compatibility with the target application.

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