SPX3940AM3-L-1-8/TR

Product Overview

Category

The SPX3940AM3-L-1-8/TR belongs to the category of voltage regulators.

Use

It is used to regulate voltage in electronic circuits, ensuring a stable output voltage regardless of input fluctuations.

Characteristics

• Input Voltage Range: 4.5V to 7V
• Output Voltage: 3.3V
• Maximum Output Current: 1A
• Low Dropout Voltage: 300mV at 1A
• Low Quiescent Current: 5mA
• Thermal Shutdown Protection

Package

The SPX3940AM3-L-1-8/TR comes in a small surface-mount package, making it suitable for compact electronic designs.

Essence

This voltage regulator is essential for maintaining a consistent and reliable power supply within electronic devices.

Packaging/Quantity

It is typically supplied in tape and reel packaging with a quantity of 2500 units per reel.

Specifications

• Input Voltage Range: 4.5V to 7V
• Output Voltage: 3.3V
• Output Current: 1A
• Dropout Voltage: 300mV at 1A
• Quiescent Current: 5mA
• Operating Temperature Range: -40°C to 125°C
• Package Type: SOT-223

Detailed Pin Configuration

The SPX3940AM3-L-1-8/TR has the following pin configuration: 1. Input (VIN): Connects to the input voltage source. 2. Ground (GND): Connected to the ground reference. 3. Output (VOUT): Provides the regulated output voltage.

Functional Features

• Voltage Regulation: Maintains a stable 3.3V output even with varying input voltages.
• Low Dropout: Ensures efficient operation with minimal voltage loss.
• Thermal Shutdown Protection: Safeguards the device from overheating.

Advantages and Disadvantages

Advantages

• Stable and precise voltage regulation
• Low dropout voltage
• Thermal shutdown protection for added reliability

Disadvantages

• Limited maximum output current of 1A
• Requires careful thermal management in high-power applications

Working Principles

The SPX3940AM3-L-1-8/TR utilizes a feedback control mechanism to compare the output voltage to a reference voltage and adjust the internal circuitry to maintain a constant 3.3V output. It also incorporates a low dropout design to minimize power dissipation and maximize efficiency.

Detailed Application Field Plans

The SPX3940AM3-L-1-8/TR is commonly used in various electronic devices such as: - Battery-powered devices - Embedded systems - Consumer electronics - Industrial control systems

Detailed and Complete Alternative Models

Some alternative models to the SPX3940AM3-L-1-8/TR include: - LM1117 - MCP1703 - AMS1117

In summary, the SPX3940AM3-L-1-8/TR is a versatile voltage regulator with precise regulation, low dropout, and thermal protection features, making it suitable for a wide range of electronic applications.

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