AP7343-28W5-7

Basic Information Overview

• Category: Electronic Component
• Use: Voltage Regulator
• Characteristics: High Efficiency, Low Dropout Voltage
• Package: TO-263-5L
• Essence: Linear Regulator
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Input Voltage Range: 2.5V to 28V
• Output Voltage: 2.8V
• Output Current: 3A
• Dropout Voltage: 0.25V (typical)
• Line Regulation: ±0.02% (typical)
• Load Regulation: ±0.1% (typical)
• Quiescent Current: 100µA (typical)

Detailed Pin Configuration

The AP7343-28W5-7 has a five-pin configuration as follows: 1. VIN: Input Voltage 2. GND: Ground 3. EN: Enable Pin 4. BYP: Bypass Capacitor Connection 5. VOUT: Output Voltage

Functional Features

• High Efficiency: The AP7343-28W5-7 offers high efficiency, minimizing power loss during voltage regulation.
• Low Dropout Voltage: With a low dropout voltage of only 0.25V, the regulator can maintain a stable output even when the input voltage is close to the desired output voltage.
• Enable Pin: The EN pin allows for easy on/off control of the regulator.
• Bypass Capacitor Connection: The BYP pin provides a connection point for a bypass capacitor, further enhancing stability and noise reduction.

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption. - Low dropout voltage ensures stable output even with low input voltages. - Enable pin allows for convenient control. - Bypass capacitor connection enhances stability and noise reduction.

Disadvantages: - Limited output current of 3A may not be suitable for high-power applications. - Linear regulators are less efficient compared to switching regulators in certain scenarios.

Working Principles

The AP7343-28W5-7 is a linear voltage regulator that operates by using a pass transistor to regulate the output voltage. It compares the reference voltage with the feedback voltage and adjusts the pass transistor accordingly to maintain a stable output voltage. The dropout voltage is minimized by utilizing a low dropout pass transistor.

Detailed Application Field Plans

The AP7343-28W5-7 can be used in various applications, including but not limited to: 1. Power Supplies: It can be employed as a voltage regulator in power supply circuits to provide a stable output voltage for other components. 2. Battery-Powered Devices: Due to its low dropout voltage, it is suitable for battery-powered devices where the input voltage may vary. 3. Automotive Electronics: The regulator can be utilized in automotive electronics to ensure a consistent voltage supply to sensitive components.

Detailed and Complete Alternative Models

1. AP7313-28W5-7: Similar specifications and pin configuration, but with a lower output current of 1A.
2. AP7361-28W5-7: Higher output current of 5A, suitable for applications requiring higher power.
3. AP7333-28W5-7: Lower dropout voltage of 0.15V, ideal for applications with tight voltage requirements.

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