SNP428FR Product Overview

Product Category

The SNP428FR belongs to the category of integrated circuits (ICs) and is specifically designed for use in electronic devices and systems.

Basic Information Overview

• Use: The SNP428FR is used as a voltage regulator in various electronic applications.
• Characteristics: It features high precision, low dropout voltage, and low quiescent current, making it suitable for power management in portable devices.
• Package: The SNP428FR is available in a small outline transistor (SOT) package, which facilitates its integration into compact circuit designs.
• Essence: Its essence lies in providing stable and regulated voltage output for powering electronic components.
• Packaging/Quantity: The SNP428FR is typically packaged in reels or tubes, with varying quantities based on manufacturer specifications.

Specifications

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage Range: 1.2V to 5.0V
• Maximum Output Current: 300mA
• Dropout Voltage: 200mV at 100mA
• Quiescent Current: 75µA
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The SNP428FR features a standard three-pin configuration: 1. Input Pin (VIN): Connects to the input voltage source. 2. Ground Pin (GND): Connected to the ground reference. 3. Output Pin (VOUT): Provides the regulated output voltage.

Functional Features

• Voltage Regulation: Maintains a stable output voltage despite variations in input voltage and load conditions.
• Low Dropout: Operates efficiently even when the input voltage is only slightly higher than the required output voltage.
• Low Quiescent Current: Minimizes power consumption during standby or idle modes.

Advantages and Disadvantages

• Advantages:
  • High precision and accuracy in voltage regulation.
  • Compact SOT package for space-constrained applications.
  • Low dropout voltage enhances efficiency in battery-powered devices.
• Disadvantages:
  • Limited maximum output current compared to some alternative models.
  • Operating temperature range may not be suitable for extreme environmental conditions.

Working Principles

The SNP428FR utilizes a combination of internal circuitry and feedback control to compare the actual output voltage with a reference voltage, adjusting the internal pass transistor to maintain the desired output voltage.

Detailed Application Field Plans

The SNP428FR is well-suited for various applications, including: - Portable electronic devices such as smartphones, tablets, and portable media players. - Battery-powered IoT (Internet of Things) devices. - Wearable electronics and health monitoring devices.

Detailed and Complete Alternative Models

Some alternative models to the SNP428FR include: 1. SNP429FR: Offers higher maximum output current for more demanding applications. 2. SNP427FR: Provides a wider operating temperature range for extreme environmental conditions. 3. SNP430FR: Incorporates additional protection features for enhanced reliability in industrial applications.

In conclusion, the SNP428FR serves as a reliable voltage regulator with specific characteristics tailored for portable and low-power electronic applications.

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