AP7343-28FS4-7B

Product Overview

Category

AP7343-28FS4-7B belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in electronic devices for voltage regulation and power management.

Characteristics

• Input Voltage Range: 2.5V to 5.5V
• Output Voltage: 2.8V
• Maximum Output Current: 150mA
• Low Dropout Voltage: 200mV at 100mA
• Low Quiescent Current: 30µA
• Thermal Shutdown Protection
• Short Circuit Protection

Package

The AP7343-28FS4-7B is available in a small SOT-23-5 package.

Essence

The essence of AP7343-28FS4-7B lies in its ability to provide stable and regulated output voltage for various electronic applications.

Packaging/Quantity

The AP7343-28FS4-7B is typically packaged in reels, with 3000 units per reel.

Specifications

• Input Voltage Range: 2.5V to 5.5V
• Output Voltage: 2.8V ±2%
• Output Current: Up to 150mA
• Dropout Voltage: 200mV at 100mA
• Quiescent Current: 30µA
• Operating Temperature Range: -40°C to +85°C
• Package Type: SOT-23-5

Detailed Pin Configuration

The AP7343-28FS4-7B 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

• Voltage Regulation: The AP7343-28FS4-7B ensures a stable output voltage of 2.8V, regardless of input voltage fluctuations.
• Low Dropout Voltage: With a dropout voltage as low as 200mV at 100mA, this IC minimizes power loss and improves efficiency.
• Thermal Shutdown Protection: The IC includes built-in thermal shutdown protection to prevent damage due to excessive heat.
• Short Circuit Protection: It also features short circuit protection, safeguarding the IC and connected components from damage.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows compatibility with various power sources.
• Low quiescent current helps conserve power in standby or idle modes.
• Small package size enables space-saving designs.
• Thermal and short circuit protection enhance reliability and durability.

Disadvantages

• Limited maximum output current may not be suitable for high-power applications.
• Fixed output voltage may not be adjustable for specific requirements.

Working Principles

The AP7343-28FS4-7B is a linear voltage regulator that utilizes a feedback mechanism to maintain a constant output voltage. It compares the feedback voltage (FB) with a reference voltage to adjust the internal circuitry and stabilize the output at 2.8V. The enable pin (EN) controls the operation of the regulator, allowing it to be turned on or off as needed.

Detailed Application Field Plans

The AP7343-28FS4-7B finds applications in various electronic devices, including but not limited to: - Mobile phones - Portable media players - Digital cameras - Wireless communication devices - Battery-powered devices - IoT modules

Detailed and Complete Alternative Models

1. AP7313-28SAG-7: Similar specifications and pin configuration, but with a different package (SOT-23-3).
2. AP7333-28SAG-7: Similar specifications and pin configuration, but with a different package (SOT-23-3) and higher maximum output current (300mA).
3. AP7361C-28SAG-7: Similar specifications and pin configuration, but with a different package (SOT-23-3) and adjustable output voltage.

These alternative models provide options for different requirements and design considerations.

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