R3880: Product Overview and Specifications

Introduction

The R3880 is a versatile integrated circuit that belongs to the category of voltage regulators. This device is widely used in various electronic applications due to its unique characteristics and functional features. In this entry, we will provide an overview of the R3880, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Voltage Regulator
• Use: The R3880 is utilized to regulate voltage levels in electronic circuits, ensuring a stable and reliable power supply.
• Characteristics: It exhibits high precision, low dropout voltage, and thermal shutdown protection.
• Package: The R3880 is available in a compact and industry-standard package, making it suitable for various PCB designs.
• Essence: Its essence lies in providing consistent and regulated voltage output for electronic components.
• Packaging/Quantity: Typically, the R3880 is supplied in tape and reel packaging with varying quantities based on the manufacturer's specifications.

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage Range: 0.8V to 5.5V
• Maximum Output Current: 1A
• Dropout Voltage: 200mV at 500mA
• Operating Temperature Range: -40°C to 125°C
• Quiescent Current: 75µA

Detailed Pin Configuration

The R3880 features a standard pin configuration with input, output, and ground pins, along with additional pins for enable and bypass functions. The detailed pinout can be found in the product datasheet provided by the manufacturer.

Functional Features

• High Precision: The R3880 offers precise voltage regulation, ensuring stable performance of connected electronic components.
• Low Dropout Voltage: This feature enables the regulator to maintain a consistent output voltage even when the input voltage approaches the output voltage.
• Thermal Shutdown Protection: The device includes built-in thermal shutdown protection, safeguarding it from overheating and potential damage.

Advantages and Disadvantages

Advantages

• High precision regulation
• Low dropout voltage
• Thermal shutdown protection
• Compact packaging
• Wide operating temperature range

Disadvantages

• Limited maximum output current (1A)
• Restricted input voltage range (2.5V to 6.5V)

Working Principles

The R3880 operates based on the principle of feedback control, where it continuously compares the output voltage to a reference voltage and adjusts the internal circuitry to maintain the desired output voltage level. This mechanism ensures a stable and regulated output regardless of variations in the input voltage or load conditions.

Detailed Application Field Plans

The R3880 finds extensive use in various electronic applications, including: - Portable electronic devices - Battery-powered systems - IoT (Internet of Things) devices - Embedded systems - Consumer electronics

Detailed and Complete Alternative Models

• LM1117: A popular alternative with similar voltage regulation capabilities.
• XC6206: Known for its low quiescent current and compact form factor.
• LT1763: Offers high output current and low dropout voltage for demanding applications.

In conclusion, the R3880 voltage regulator stands as a reliable and efficient component in the realm of electronic design, offering precise voltage regulation, thermal protection, and compact packaging. Its versatility and functional features make it a preferred choice for a wide range of electronic applications.

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