TPS28226DRBT

Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - High efficiency - Low quiescent current - Wide input voltage range - Adjustable output voltage - Overcurrent protection - Thermal shutdown protection

Package: 8-Pin SON (Small Outline No-Lead) Package

Essence: The TPS28226DRBT is a power management IC designed for efficient power conversion in various applications.

Packaging/Quantity: Available in tape and reel packaging, with 2500 units per reel.

Specifications

• Input Voltage Range: 4.5V to 18V
• Output Voltage Range: 0.8V to 6V
• Maximum Continuous Output Current: 2A
• Quiescent Current: 40µA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The TPS28226DRBT has the following pin configuration:

1. EN (Enable): Enable control pin for turning the device on or off.
2. VIN (Input Voltage): Input voltage pin.
3. PGND (Power Ground): Ground reference for the power stage.
4. SW (Switch Node): Switching node connection for the power stage.
5. FB (Feedback): Feedback pin for adjusting the output voltage.
6. SS/TR (Soft Start/Tracking): Soft start and tracking control pin.
7. COMP (Compensation): Compensation pin for stability control.
8. VOUT (Output Voltage): Output voltage pin.

Functional Features

• High Efficiency: The TPS28226DRBT offers high efficiency power conversion, minimizing power losses.
• Low Quiescent Current: With a low quiescent current of 40µA, the IC reduces standby power consumption.
• Wide Input Voltage Range: The device can operate with an input voltage range of 4.5V to 18V, providing flexibility in various applications.
• Adjustable Output Voltage: The output voltage can be adjusted from 0.8V to 6V, allowing customization for specific requirements.
• Overcurrent Protection: The IC incorporates overcurrent protection to safeguard against excessive current flow.
• Thermal Shutdown Protection: Thermal shutdown protection prevents the device from overheating.

Advantages and Disadvantages

Advantages: - High efficiency power conversion - Wide input voltage range - Adjustable output voltage - Overcurrent and thermal protection

Disadvantages: - Limited maximum continuous output current (2A)

Working Principles

The TPS28226DRBT operates as a step-down (buck) converter. It converts a higher input voltage to a lower output voltage by controlling the duty cycle of the internal power switch. The feedback mechanism adjusts the duty cycle based on the desired output voltage, ensuring regulation. The IC also includes protection features such as overcurrent and thermal shutdown to enhance reliability.

Detailed Application Field Plans

The TPS28226DRBT is suitable for various applications, including but not limited to: - Industrial automation systems - Telecommunications equipment - Consumer electronics - Automotive electronics - Power supplies

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the TPS28226DRBT are: - TPS28225DRBT - TPS28227DRBT - TPS28228DRBT - TPS28229DRBT

These models have comparable specifications and pin configurations, providing alternatives for different design requirements.

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