LM2575-12YWM-TR

Product Overview

Category

The LM2575-12YWM-TR belongs to the category of voltage regulators.

Use

This product is commonly used in electronic circuits to regulate and control the output voltage.

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

The LM2575-12YWM-TR comes in a TO-263-7 package, also known as D²PAK/TO-263.

Essence

The essence of the LM2575-12YWM-TR is its ability to efficiently convert higher input voltages into a regulated 12V output.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 4.75V to 40V
• Output Voltage: 12V
• Output Current: Up to 1A
• Dropout Voltage: 2V (maximum)
• Line Regulation: ±0.5% (typical)
• Load Regulation: ±0.5% (typical)
• Quiescent Current: 10mA (typical)
• Switching Frequency: 52 kHz
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LM2575-12YWM-TR has the following pin configuration:

1. VIN (Input Voltage)
2. GND (Ground)
3. FB (Feedback)
4. VOUT (Output Voltage)
5. ON/OFF (Enable/Disable)
6. NC (No Connection)
7. VIN (Input Voltage)

Functional Features

• Wide input voltage range allows for versatile applications.
• High efficiency ensures minimal power loss during voltage conversion.
• Internal thermal shutdown and current limit protection enhance reliability.
• Adjustable output voltage using external resistors.
• Enable/disable pin for easy control of the regulator.

Advantages

• Efficient voltage regulation with high output current capability.
• Wide input voltage range enables compatibility with various power sources.
• Compact package size for space-constrained applications.
• Built-in protection features enhance system reliability.
• Adjustable output voltage provides flexibility in design.

Disadvantages

• Switching regulators may introduce some noise into the circuit.
• Requires additional external components for proper operation.
• Higher cost compared to linear regulators.

Working Principles

The LM2575-12YWM-TR is a step-down switching voltage regulator. It utilizes a pulse-width modulation (PWM) control scheme to regulate the output voltage. The input voltage is chopped at a high frequency by an internal switch, and then filtered and regulated to provide a stable 12V output. The feedback pin monitors the output voltage and adjusts the duty cycle of the internal switch to maintain the desired output voltage.

Detailed Application Field Plans

The LM2575-12YWM-TR finds applications in various fields, including:

1. Power supply circuits for microcontrollers and other digital devices.
2. Battery charging circuits.
3. Automotive electronics.
4. Industrial automation systems.
5. LED lighting applications.
6. Portable electronic devices.

Detailed and Complete Alternative Models

1. LM2576-12WU
2. LM2596-12
3. LM2678-12
4. LM317T
5. LM350T
6. LM7805

These alternative models offer similar functionality and can be used as substitutes for the LM2575-12YWM-TR in different applications.

In conclusion, the LM2575-12YWM-TR is a versatile voltage regulator with a wide input voltage range and high efficiency. It finds applications in various fields and offers advantages such as adjustable output voltage and built-in protection features. However, it may introduce some noise and requires additional external components for proper operation. Alternative models are available for different design requirements.