BU33UC3WG-TR

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - High efficiency voltage regulator - Low power consumption - Wide input voltage range - Overcurrent protection - Thermal shutdown protection

Package: TO-252-5L (DPAK)

Essence: The BU33UC3WG-TR is a power management IC designed to regulate voltage efficiently with low power consumption. It offers overcurrent and thermal shutdown protection, making it suitable for various applications.

Packaging/Quantity: The BU33UC3WG-TR is typically packaged in reels containing 2,500 units per reel.

Specifications

• Input Voltage Range: 4.5V to 24V
• Output Voltage Range: 0.8V to 18V
• Maximum Output Current: 3A
• Dropout Voltage: 0.25V (typical)
• Quiescent Current: 50μA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The BU33UC3WG-TR has the following pin configuration:

1. VIN (Input Voltage)
2. GND (Ground)
3. EN (Enable)
4. FB (Feedback)
5. VOUT (Output Voltage)

Functional Features

• High efficiency voltage regulation
• Overcurrent protection prevents damage to the IC and connected devices
• Thermal shutdown protection safeguards against overheating
• Enable pin allows for easy on/off control
• Feedback pin provides accurate output voltage regulation

Advantages and Disadvantages

Advantages: - High efficiency operation - Wide input voltage range - Overcurrent and thermal shutdown protection - Easy on/off control with enable pin - Accurate output voltage regulation

Disadvantages: - Limited maximum output current (3A)

Working Principles

The BU33UC3WG-TR utilizes a switching regulator topology to efficiently regulate the input voltage to the desired output voltage. It employs a feedback mechanism to continuously monitor and adjust the output voltage, ensuring stability and accuracy. The IC also incorporates overcurrent protection, which limits the output current to prevent damage in case of a fault condition. Additionally, thermal shutdown protection activates when the temperature exceeds a certain threshold, safeguarding the IC from overheating.

Detailed Application Field Plans

The BU33UC3WG-TR is widely used in various applications that require efficient voltage regulation and low power consumption. Some common application fields include:

1. Consumer Electronics: Power management for smartphones, tablets, and portable devices.
2. Industrial Automation: Voltage regulation for control systems, motor drives, and sensors.
3. Automotive: Power supply for infotainment systems, lighting, and other automotive electronics.
4. Telecommunications: Voltage regulation for networking equipment, routers, and switches.
5. Renewable Energy: Power management for solar panels, wind turbines, and energy storage systems.

Detailed and Complete Alternative Models

1. LM1117-3.3: Low dropout voltage regulator with a fixed 3.3V output.
2. LT1083: Adjustable linear voltage regulator capable of delivering up to 7.5A.
3. TPS5430: Synchronous buck converter with an adjustable output voltage range.
4. MAX15062: High-efficiency step-down converter with integrated power MOSFETs.
5. LM2596: Switching voltage regulator with adjustable output voltage and high efficiency.

These alternative models offer similar functionality and can be considered as alternatives to the BU33UC3WG-TR based on specific requirements and design constraints.

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