TL2575-12IKTTR

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Step-down switching regulator - Fixed output voltage of 12V - High efficiency - Low power consumption - Wide input voltage range - Adjustable frequency - Thermal shutdown protection

Package: SOT-223

Essence: The TL2575-12IKTTR is a step-down switching regulator IC that provides a fixed output voltage of 12V. It is commonly used in various electronic devices to regulate and stabilize the voltage supply.

Packaging/Quantity: The TL2575-12IKTTR is available in a SOT-223 package. It is typically sold in reels or tubes containing multiple units.

Specifications

• Input Voltage Range: 4.5V to 40V
• Output Voltage: 12V
• Output Current: Up to 1A
• Switching Frequency: Adjustable up to 500kHz
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The TL2575-12IKTTR has the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. FB: Feedback pin for output voltage regulation
4. EN: Enable pin for turning the regulator on/off
5. SW: Switching pin for controlling the internal switch

Functional Features

• Step-down voltage regulation: Converts higher input voltages to a stable 12V output.
• Adjustable frequency: Allows users to optimize performance based on specific application requirements.
• Thermal shutdown protection: Safeguards the IC from overheating by shutting down operation when the temperature exceeds a certain threshold.

Advantages and Disadvantages

Advantages: - High efficiency results in reduced power dissipation and longer battery life. - Wide input voltage range enables compatibility with various power sources. - Compact SOT-223 package allows for space-saving designs. - Adjustable frequency provides flexibility in optimizing performance.

Disadvantages: - Limited output current of up to 1A may not be sufficient for high-power applications. - Requires external components for proper operation, increasing overall system complexity.

Working Principles

The TL2575-12IKTTR operates as a step-down switching regulator. It utilizes an internal switch to rapidly turn the input voltage on and off, creating a series of pulses. These pulses are then filtered and regulated to provide a stable 12V output voltage. The feedback pin (FB) monitors the output voltage and adjusts the duty cycle of the internal switch to maintain the desired voltage level.

Detailed Application Field Plans

The TL2575-12IKTTR is widely used in various electronic devices and applications, including but not limited to: - Power supplies for industrial equipment - Automotive electronics - Battery-powered systems - LED lighting - Telecommunications equipment - Audio amplifiers

Detailed and Complete Alternative Models

• LM2576-12: Similar step-down switching regulator with fixed 12V output.
• LT1370: Step-down switching regulator with adjustable output voltage.
• MC34063: Low-cost step-up/down switching regulator.
• TPS5430: High-efficiency synchronous buck converter.

These alternative models offer similar functionality and can be considered as substitutes for the TL2575-12IKTTR based on specific application requirements.

In conclusion, the TL2575-12IKTTR is a versatile voltage regulator IC that provides a fixed 12V output. Its high efficiency, wide input voltage range, and compact package make it suitable for various electronic applications. However, its limited output current and external component requirements should be considered when selecting the appropriate voltage regulator for a specific application.