AP7343D-25FS4-7B

Basic Information Overview

Category: Electronic Component
Use: Voltage Regulator
Characteristics: High Efficiency, Low Dropout Voltage
Package: SOT-223
Essence: Linear Regulator
Packaging/Quantity: Tape & Reel / 2500 units per reel

Specifications

• Input Voltage Range: 2.5V to 6V
• Output Voltage: 2.5V
• Output Current: 150mA
• Dropout Voltage: 200mV (typical)
• Line Regulation: ±0.2% (typical)
• Load Regulation: ±0.4% (typical)
• Quiescent Current: 50µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AP7343D-25FS4-7B has four pins in the SOT-223 package:

1. VIN (Input Voltage)
2. GND (Ground)
3. VOUT (Output Voltage)
4. NC (No Connection)

Functional Features

• Low dropout voltage enables efficient regulation even with small input-output voltage differentials.
• Excellent line and load regulation ensures stable output voltage under varying conditions.
• Low quiescent current minimizes power consumption when the regulator is idle.
• Thermal shutdown protection prevents damage due to excessive temperature.

Advantages and Disadvantages

Advantages: - High efficiency - Low dropout voltage - Stable output voltage - Small form factor - Thermal protection

Disadvantages: - Limited output current (150mA) - Narrow input voltage range (2.5V to 6V)

Working Principles

The AP7343D-25FS4-7B is a linear regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with a fraction of the output voltage, adjusting the pass transistor to maintain a stable output. The dropout voltage is the minimum voltage difference required between the input and output for proper regulation.

Detailed Application Field Plans

The AP7343D-25FS4-7B is commonly used in various electronic devices that require a stable 2.5V power supply. Some typical applications include:

1. Battery-powered devices
2. Portable audio players
3. Wearable devices
4. IoT modules
5. Embedded systems

Detailed and Complete Alternative Models

1. AP7333-25SAG-7: SOT-23 package, 150mA output current, 2.5V output voltage.
2. LP2985-33DBVR: SOT-23 package, 150mA output current, 3.3V output voltage.
3. MCP1700T-2502E/TT: SOT-23 package, 250mA output current, 2.5V output voltage.
4. LM1117IMPX-2.5/NOPB: SOT-223 package, 800mA output current, 2.5V output voltage.

These alternative models offer similar functionality and can be considered as replacements for the AP7343D-25FS4-7B in specific applications.

In conclusion, the AP7343D-25FS4-7B is a linear regulator with high efficiency and low dropout voltage. It is commonly used in battery-powered devices, portable audio players, wearable devices, IoT modules, and embedded systems. While it has limitations in terms of output current and input voltage range, there are alternative models available to suit different requirements.