UCC3813PW-4G4

Product Overview

Category

UCC3813PW-4G4 belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This product is commonly used in various electronic devices and systems to regulate and control power supply voltages efficiently.

Characteristics

• High efficiency: UCC3813PW-4G4 offers excellent power conversion efficiency, minimizing energy losses during voltage regulation.
• Wide input voltage range: It can handle a broad range of input voltages, making it suitable for diverse applications.
• Compact package: The UCC3813PW-4G4 is available in a small-sized package, enabling space-saving designs.
• Low power consumption: This IC consumes minimal power during operation, contributing to overall system energy efficiency.

Package and Quantity

The UCC3813PW-4G4 is typically packaged in a PowerPAD SOIC-8 package. It is commonly available in reels containing a quantity of 2500 units per reel.

Specifications

• Input Voltage Range: 2.7V to 18V
• Output Voltage Range: 1.23V to 16V
• Maximum Output Current: 500mA
• Switching Frequency: 100kHz to 1MHz
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The UCC3813PW-4G4 has eight pins arranged as follows:

```

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| | --| VREF VCC|-- --| COMP GND|-- --| FB OUT|-- |___________| ```

1. VREF: Reference voltage pin.
2. COMP: Compensation pin for feedback loop stability.
3. FB: Feedback pin for regulating the output voltage.
4. OUT: Output pin for the regulated voltage.
5. GND: Ground pin.
6. VCC: Power supply input pin.

Functional Features

• Voltage Regulation: The UCC3813PW-4G4 provides precise voltage regulation, ensuring a stable output voltage despite variations in input voltage and load conditions.
• Current Limiting: It incorporates current limiting functionality to protect the circuit from excessive current flow, preventing damage to the device and connected components.
• Soft Start: This IC includes a soft start feature that gradually ramps up the output voltage during power-up, reducing stress on the system components.
• Overtemperature Protection: UCC3813PW-4G4 incorporates overtemperature protection, automatically shutting down the device if the temperature exceeds a safe operating limit.

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power consumption and improved energy efficiency.
• Wide input voltage range allows for versatile applications.
• Compact package enables space-saving designs.
• Precise voltage regulation ensures stable output voltages.

Disadvantages

• Limited maximum output current may restrict its use in high-power applications.
• The operating temperature range might not be suitable for extreme environments.

Working Principles

The UCC3813PW-4G4 operates based on a pulse-width modulation (PWM) control scheme. It regulates the output voltage by adjusting the duty cycle of the internal switching transistor. By comparing the feedback voltage with the reference voltage, the IC continuously adjusts the duty cycle to maintain the desired output voltage.

Application Field Plans

The UCC3813PW-4G4 finds applications in various fields, including but not limited to: 1. Power supplies for consumer electronics such as smartphones, tablets, and laptops. 2. Industrial automation systems requiring efficient power management. 3. Automotive electronics for voltage regulation in vehicles. 4. Renewable energy systems like solar inverters and wind turbines. 5. Telecommunications equipment for stable power supply.

Alternative Models

Several alternative models with similar functionality to UCC3813PW-4G4 are available in the market. Some notable alternatives include: 1. LM2576-ADJ: A step-down voltage regulator IC with adjustable output voltage. 2. LT1170: A high-power, adjustable switching regulator IC. 3. TPS5430: A synchronous buck converter IC with a wide input voltage range.

These alternative models can be considered based on specific application requirements and design constraints.

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