TPS40197RGYT

Product Overview

The TPS40197RGYT belongs to the category of voltage mode synchronous buck controllers. It is commonly used in power management applications and is characterized by its high efficiency, compact package, and versatile functionality. The TPS40197RGYT is typically available in a small outline integrated circuit (SOIC) package and is an essential component for regulating voltage in various electronic devices.

Basic Information

• Category: Voltage Mode Synchronous Buck Controller
• Use: Power Management
• Characteristics: High Efficiency, Compact Package
• Package: Small Outline Integrated Circuit (SOIC)
• Essence: Regulating Voltage
• Packaging/Quantity: Typically sold in reels of 2500 units

Specifications

• Input Voltage Range: 4.5V to 28V
• Output Voltage Range: 0.6V to 5.5V
• Switching Frequency: Up to 2.2MHz
• Operating Temperature Range: -40°C to 125°C
• Features: Adjustable Soft Start, Overcurrent Protection, Thermal Shutdown

Detailed Pin Configuration

The TPS40197RGYT features a standard pin configuration with pins designated for input voltage, output voltage, feedback, compensation, and power ground.

| Pin Number | Name | Description | |------------|---------------|---------------------------------------| | 1 | VIN | Input Voltage | | 2 | PGND | Power Ground | | 3 | COMP | Compensation | | 4 | FB | Feedback | | 5 | SS/TR/UVLO | Soft Start/Tracking/Undervoltage Lockout | | 6 | RT/CLK | Oscillator Resistor/External Clock | | 7 | EN/UVLO | Enable/Undervoltage Lockout | | 8 | SW | Switch Node |

Functional Features

• Adjustable Soft Start: Allows for controlled start-up of the power supply.
• Overcurrent Protection: Safeguards the system from excessive current flow.
• Thermal Shutdown: Protects the device from overheating, ensuring long-term reliability.

Advantages and Disadvantages

Advantages

• High Efficiency
• Wide Input Voltage Range
• Compact Package Size

Disadvantages

• Limited Output Current Capacity
• External Components Required for Operation

Working Principles

The TPS40197RGYT operates on the principle of voltage mode control, where the output voltage is regulated based on a comparison between a reference voltage and the feedback signal. By adjusting the duty cycle of the switching signal, the controller maintains the desired output voltage even under varying load conditions.

Detailed Application Field Plans

The TPS40197RGYT is well-suited for a wide range of power management applications, including: - Point-of-Load Converters - Industrial Power Supplies - Battery-Powered Devices - LED Lighting Systems

Detailed and Complete Alternative Models

For those seeking alternative models, the following options are available: - TPS40170: Similar voltage mode synchronous buck controller with adjustable soft start and overcurrent protection. - TPS54360: Non-synchronous buck converter with integrated high-side MOSFET for compact designs.

In conclusion, the TPS40197RGYT is a versatile voltage mode synchronous buck controller that offers high efficiency and compact packaging, making it an ideal choice for various power management applications.

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