LM2575D2T-3.3R4G

Product Overview

Category

The LM2575D2T-3.3R4G belongs to the category of voltage regulators.

Use

This product is commonly used to regulate voltage in electronic circuits.

Characteristics

• Input Voltage Range: 4.75V to 40V
• Output Voltage: 3.3V
• Output Current: Up to 1A
• Efficiency: Up to 92%
• Switching Frequency: 52 kHz
• Operating Temperature Range: -40°C to +125°C

Package

The LM2575D2T-3.3R4G comes in a TO-263-6 (D2PAK) package.

Essence

The essence of this product lies in its ability to efficiently regulate voltage, providing a stable output for various electronic applications.

Packaging/Quantity

The LM2575D2T-3.3R4G is typically packaged in reels and available in quantities of 2500 units per reel.

Specifications

• Input Voltage Range: 4.75V to 40V
• Output Voltage: 3.3V
• Output Current: Up to 1A
• Quiescent Current: 10mA
• Dropout Voltage: 1.2V
• Line Regulation: ±0.5%
• Load Regulation: ±0.5%
• Switching Frequency: 52 kHz
• Operating Temperature Range: -40°C to +125°C
• Package Type: TO-263-6 (D2PAK)

Detailed Pin Configuration

The LM2575D2T-3.3R4G has the following pin configuration:

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

Functional Features

• Wide input voltage range allows for versatile applications.
• High efficiency ensures minimal power loss during voltage regulation.
• Built-in protection features such as thermal shutdown and current limiting enhance reliability.
• Adjustable output voltage through external resistors provides flexibility.

Advantages

• Efficient voltage regulation minimizes power dissipation.
• Wide input voltage range enables compatibility with various power sources.
• Compact package size facilitates easy integration into electronic circuits.
• Built-in protection features enhance system reliability.

Disadvantages

• The fixed output voltage may limit certain applications requiring different voltage levels.
• The switching frequency may introduce electromagnetic interference in sensitive systems.

Working Principles

The LM2575D2T-3.3R4G is a step-down switching regulator that utilizes pulse-width modulation (PWM) to regulate the output voltage. It operates by rapidly switching the internal power switch on and off, controlling the duty cycle to maintain the desired output voltage. This switching action allows for efficient voltage conversion while minimizing power dissipation.

Detailed Application Field Plans

The LM2575D2T-3.3R4G finds applications in various fields, including:

1. Power supply modules for industrial equipment
2. Battery-powered devices
3. Automotive electronics
4. Telecommunications equipment
5. LED lighting systems

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the LM2575D2T-3.3R4G include:

1. LM2596S-ADJ: Adjustable output voltage, higher current capability.
2. LM317: Adjustable linear voltage regulator.
3. LT1763: Low dropout voltage regulator with high accuracy.

These alternative models offer different features and specifications, allowing users to choose the most suitable option for their specific application requirements.

In conclusion, the LM2575D2T-3.3R4G is a voltage regulator with a wide input voltage range, high efficiency, and compact package size. It finds applications in various fields and offers advantages such as efficient voltage regulation and built-in protection features. However, it has limitations regarding fixed output voltage and potential electromagnetic interference. Users can consider alternative models based on their specific needs.