LM2575D2T-012G

Product Overview

Category

LM2575D2T-012G belongs to the category of voltage regulators.

Use

It is commonly used to regulate voltage in electronic circuits.

Characteristics

• Input Voltage Range: 4.75V to 40V
• Output Voltage: 12V
• Output Current: Up to 1A
• Efficiency: Up to 92%
• Switching Frequency: 52 kHz
• Operating Temperature Range: -40°C to +125°C

Package

LM2575D2T-012G comes in a TO-263 package.

Essence

The essence of LM2575D2T-012G is its ability to efficiently regulate voltage while maintaining a stable output.

Packaging/Quantity

It is typically available in reels or tubes, with a quantity of 2500 units per reel or 50 units per tube.

Specifications

• Input Voltage Range: 4.75V to 40V
• Output Voltage: 12V
• Output Current: Up to 1A
• Switching Frequency: 52 kHz
• Operating Temperature Range: -40°C to +125°C
• Package: TO-263

Detailed Pin Configuration

LM2575D2T-012G has the following pin configuration:

1. VIN (Pin 1): Input voltage pin
2. GND (Pin 2): Ground pin
3. FB (Pin 3): Feedback pin
4. VOUT (Pin 4): Output voltage pin
5. SW (Pin 5): Switching pin

Functional Features

LM2575D2T-012G offers the following functional features:

• Wide input voltage range allows for versatile applications.
• High efficiency ensures minimal power loss.
• Over-temperature and over-current protection safeguards the circuit.
• Adjustable output voltage provides flexibility.
• Built-in soft-start feature prevents excessive inrush current.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for compatibility with various power sources.
• High efficiency reduces power dissipation and improves overall system performance.
• Over-temperature and over-current protection enhance reliability and safety.
• Adjustable output voltage provides versatility for different applications.
• Soft-start feature minimizes stress on components during startup.

Disadvantages

• Limited output current of up to 1A may not be sufficient for high-power applications.
• Switching frequency of 52 kHz may introduce audible noise in sensitive audio circuits.

Working Principles

LM2575D2T-012G operates based on the principle of pulse-width modulation (PWM). It uses an internal oscillator to control the duty cycle of a power switch, which regulates the output voltage. The feedback pin monitors the output voltage and adjusts the duty cycle accordingly to maintain a stable output.

Detailed Application Field Plans

LM2575D2T-012G finds applications in various fields, including:

1. Power supply modules for electronic devices
2. Battery charging circuits
3. Automotive electronics
4. Industrial automation systems
5. LED lighting systems

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to LM2575D2T-012G are:

1. LM2596S-12: Similar specifications, but available in a different package (TO-220).
2. LM317: Adjustable voltage regulator with higher output current capability.
3. LT1084: Low dropout voltage regulator with adjustable output voltage.

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

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