LM3724EM5-4.63/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - Low quiescent current - Thermal shutdown protection - Short-circuit current limit - Wide input voltage range

Package: SOT-23-5

Essence: The LM3724EM5-4.63/NOPB is a voltage regulator IC designed to provide a regulated output voltage with low dropout voltage and low quiescent current.

Packaging/Quantity: The LM3724EM5-4.63/NOPB is available in a SOT-23-5 package. It is typically sold in reels of 3000 units.

Specifications

The LM3724EM5-4.63/NOPB has the following specifications:

• Input Voltage Range: 2.5V to 6V
• Output Voltage: 4.63V
• Dropout Voltage: 200mV at 100mA
• Quiescent Current: 40µA
• Maximum Output Current: 250mA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LM3724EM5-4.63/NOPB has five pins arranged as follows:

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Pin 1: Enable (EN) Pin 2: Ground (GND) Pin 3: Feedback (FB) Pin 4: Output (OUT) Pin 5: Input (IN)

Functional Features

The LM3724EM5-4.63/NOPB offers the following functional features:

1. Low Dropout Voltage: The IC maintains a low dropout voltage, allowing it to regulate the output voltage even when the input voltage is close to the desired output voltage.
2. Low Quiescent Current: The IC has a low quiescent current, minimizing power consumption in standby or idle modes.
3. Thermal Shutdown Protection: The IC includes thermal shutdown protection, which prevents damage due to excessive temperature.
4. Short-Circuit Current Limit: The IC limits the output current in case of a short circuit, protecting both the regulator and the load.
5. Wide Input Voltage Range: The IC can operate with an input voltage range of 2.5V to 6V, providing flexibility in various applications.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient regulation - Low quiescent current minimizes power consumption - Thermal shutdown protection prevents overheating - Short-circuit current limit protects the regulator and load - Wide input voltage range allows for versatile applications

Disadvantages: - Limited maximum output current (250mA)

Working Principles

The LM3724EM5-4.63/NOPB is a linear voltage regulator that uses a PNP pass transistor to regulate the output voltage. It compares the feedback voltage with a reference voltage to adjust the pass transistor's conduction, maintaining a stable output voltage. The dropout voltage is minimized by using a low VCE(sat) PNP transistor.

Detailed Application Field Plans

The LM3724EM5-4.63/NOPB is suitable for various applications, including:

1. Battery-Powered Devices: It can be used to regulate the voltage in portable electronic devices such as smartphones, tablets, and portable media players.
2. IoT Devices: The IC can provide a stable voltage supply for IoT devices, ensuring reliable operation.
3. Automotive Electronics: It can be utilized in automotive applications, such as infotainment systems, dashboard displays, and lighting control circuits.
4. Industrial Control Systems: The IC can regulate voltage in industrial control systems, ensuring stable operation of sensors, actuators, and other components.

Detailed and Complete Alternative Models

1. LM1117-3.3/NOPB: A 3.3V voltage regulator with similar characteristics and package.
2. LM317T: A general-purpose adjustable voltage regulator that can provide various output voltages.
3. LP2950-5.0/NOPB: A 5V low dropout voltage regulator suitable for low-power applications.

These alternative models offer different output voltages or additional features, providing flexibility for specific application requirements.

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