PL123-05SI

Overview

Category: Electronic Component
Use: Power Supply
Characteristics: High Efficiency, Compact Size
Package: Small Outline Integrated Circuit (SOIC)
Essence: Voltage Regulator
Packaging/Quantity: 1000 pieces per reel

Specifications and Parameters

Input Voltage Range: 4.5V to 18V
Output Voltage: 5V
Output Current: 500mA
Dropout Voltage: 200mV at 500mA
Quiescent Current: 50µA
Operating Temperature Range: -40°C to +85°C

Pin Configuration

The PL123-05SI has a total of 8 pins. The pin configuration is as follows:

VIN (Input Voltage)
GND (Ground)
EN (Enable)
NC (No Connection)
VOUT (Output Voltage)
VOUT (Output Voltage)
GND (Ground)
GND (Ground)

Functional Characteristics

High Efficiency: The PL123-05SI offers high efficiency, ensuring minimal power loss during voltage regulation.
Compact Size: With its small outline integrated circuit package, the PL123-05SI is designed to occupy minimal space on a PCB.
Voltage Regulation: It regulates the input voltage to a stable 5V output, suitable for various electronic devices.

Advantages and Disadvantages

Advantages: - High efficiency design reduces power loss - Compact size saves PCB space - Stable output voltage ensures reliable performance

Disadvantages: - Limited output current of 500mA may not be sufficient for high-power applications - Dropout voltage of 200mV may affect performance in low input voltage scenarios

Applicable Range of Products

The PL123-05SI is commonly used in electronic devices that require a stable 5V power supply, such as: - Mobile phones - Tablets - Portable media players - IoT devices - Embedded systems

Working Principles

The PL123-05SI operates as a voltage regulator, maintaining a constant output voltage of 5V regardless of fluctuations in the input voltage. It achieves this by adjusting its internal circuitry to compensate for changes in the input voltage.

Detailed Application Field Plans

The PL123-05SI can be utilized in various applications, including but not limited to: 1. Mobile phone chargers 2. Battery-powered devices 3. USB power supplies 4. Audio amplifiers 5. LED lighting systems

Detailed Alternative Models

Some alternative models to the PL123-05SI include: - PL456-10SI: Offers higher output current of 1A - PL789-03SI: Provides lower dropout voltage for improved performance in low input voltage scenarios - PL234-08SI: Features adjustable output voltage for greater flexibility

5 Common Technical Questions and Answers

Q: What is the maximum input voltage the PL123-05SI can handle?
- A: The PL123-05SI can handle input voltages ranging from 4.5V to 18V.
Q: Can the PL123-05SI be used in automotive applications?
- A: Yes, the PL123-05SI has an operating temperature range of -40°C to +85°C, making it suitable for automotive environments.
Q: What is the quiescent current of the PL123-05SI?
- A: The quiescent current is 50µA, ensuring minimal power consumption when the device is idle.
Q: Is the PL123-05SI compatible with both 3.3V and 5V logic systems?
- A: Yes, the PL123-05SI provides a stable 5V output, making it compatible with both 3.3V and 5V logic systems.
Q: Can the PL123-05SI be used in high-power applications?
- A: The PL123-05SI has a limited output current of 500mA, which may not be sufficient for high-power applications. It is recommended to consider alternative models with higher output currents for such scenarios.

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