LM3420M5-12.6

Product Overview

Category

LM3420M5-12.6 belongs to the category of voltage regulators.

Use

This product is commonly used for regulating voltage in electronic circuits.

Characteristics

• Package: The LM3420M5-12.6 comes in a compact SOT-23-5 package.
• Essence: It is a high-performance voltage regulator designed for efficient power management.
• Packaging/Quantity: The LM3420M5-12.6 is typically sold in reels containing 3000 units.

Specifications

The LM3420M5-12.6 has the following specifications:

• Input Voltage Range: 4.5V to 30V
• Output Voltage: 12.6V
• Output Current: Up to 500mA
• Dropout Voltage: 0.3V (typical)
• Quiescent Current: 120µA (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LM3420M5-12.6 has five pins arranged as follows:

1. VIN: Input voltage pin
2. GND: Ground pin
3. FB: Feedback pin for setting the output voltage
4. EN: Enable pin for turning the regulator on/off
5. VOUT: Output voltage pin

Functional Features

The LM3420M5-12.6 offers the following functional features:

• High Efficiency: The voltage regulator provides excellent efficiency, minimizing power losses.
• Low Dropout Voltage: With a low dropout voltage, it can regulate the output voltage even when the input voltage is close to the desired output voltage.
• Overcurrent Protection: The LM3420M5-12.6 incorporates overcurrent protection, safeguarding the circuit from excessive current flow.
• Thermal Shutdown: In case of excessive temperature, the regulator automatically shuts down to prevent damage.

Advantages and Disadvantages

Advantages

• High efficiency ensures optimal power management.
• Compact package size allows for easy integration into various electronic devices.
• Overcurrent protection enhances circuit reliability.
• Thermal shutdown prevents overheating and potential damage.

Disadvantages

• Limited output current capacity (up to 500mA).
• Requires external components for proper operation.

Working Principles

The LM3420M5-12.6 operates as a linear voltage regulator. It regulates the output voltage by comparing the feedback voltage (FB pin) with an internal reference voltage. By adjusting the resistance connected to the FB pin, the desired output voltage can be set. The regulator maintains a stable output voltage by continuously monitoring and adjusting the current flow.

Detailed Application Field Plans

The LM3420M5-12.6 finds applications in various fields, including:

1. Battery-Powered Devices: It is suitable for portable electronic devices powered by batteries, such as smartphones, tablets, and portable audio players.
2. Automotive Electronics: The LM3420M5-12.6 can be used in automotive applications, including infotainment systems, lighting controls, and power management modules.
3. Industrial Control Systems: It is applicable in industrial control systems that require precise voltage regulation, such as motor control units and sensor interfaces.

Detailed and Complete Alternative Models

Here are some alternative models that offer similar functionality to the LM3420M5-12.6:

1. LM317: A popular general-purpose linear voltage regulator with adjustable output voltage.
2. LT1084: A high-current linear voltage regulator capable of delivering up to 5A of output current.
3. TPS7A4700: An ultra-low-noise linear voltage regulator suitable for sensitive audio and measurement applications.

In conclusion, the LM3420M5-12.6 is a high-performance voltage regulator with excellent efficiency and various protective features. It finds applications in battery-powered devices, automotive electronics, and industrial control systems. While it has limitations in terms of output current capacity, it offers reliable voltage regulation for a wide range of electronic circuits.