A1140LUA Product Overview

Product Category

The A1140LUA belongs to the category of integrated circuits, specifically within the field of analog and digital signal processing.

Basic Information Overview

• Use: The A1140LUA is a precision, low noise, low dropout voltage regulator designed for use in various electronic applications.
• Characteristics: It is known for its high accuracy, low quiescent current, and low dropout voltage, making it suitable for battery-powered devices and other low voltage applications.
• Package: The A1140LUA is typically available in a small outline package (SOP) or dual in-line package (DIP).
• Essence: Its essence lies in providing stable and regulated power supply to sensitive electronic components.
• Packaging/Quantity: It is commonly sold in reels or tubes containing multiple units, with quantities varying based on manufacturer and distributor specifications.

Specifications

• Input Voltage Range: 2.5V to 16V
• Output Voltage Range: 1.2V to 15V
• Dropout Voltage: 300mV at 1A load
• Quiescent Current: 75µA
• Output Current: Up to 1A
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The A1140LUA typically features a standard pin configuration with input, output, ground, and enable pins. The specific pinout can be found in the product datasheet provided by the manufacturer.

Functional Features

• Precision Regulation: Provides accurate and stable output voltage even under varying load conditions.
• Low Dropout Voltage: Ensures efficient operation with minimal voltage loss across the regulator.
• Low Noise: Minimizes electrical interference and ensures clean power delivery to connected components.
• Thermal Shutdown Protection: Safeguards the regulator from overheating, enhancing its reliability.

Advantages and Disadvantages

Advantages

• High accuracy and stability
• Low dropout voltage for efficient power utilization
• Minimal quiescent current for extended battery life
• Thermal shutdown protection for enhanced safety

Disadvantages

• Limited maximum output current compared to higher power regulators
• May require additional heat sinking for certain high-power applications

Working Principles

The A1140LUA operates based on the principle of feedback control, where it compares the actual output voltage to a reference voltage and adjusts the internal circuitry to maintain the desired output voltage. This regulation process ensures a consistent and reliable power supply to connected devices.

Detailed Application Field Plans

The A1140LUA finds extensive application in various fields, including: - Portable electronic devices - Battery-powered systems - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

• LM1117: Similar low dropout voltage regulator with adjustable output voltage
• LT1763: Precision LDO regulator with ultra-low dropout voltage and low quiescent current
• MIC5205: Low noise LDO regulator with wide input voltage range and high PSRR

In conclusion, the A1140LUA serves as a versatile and reliable voltage regulator with precise control and low power consumption, making it an essential component in numerous electronic applications.

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