LD2982AM47R

Product Overview

Category

LD2982AM47R belongs to the category of voltage regulators.

Use

It is commonly used to regulate and stabilize voltage in electronic circuits.

Characteristics

• Low dropout voltage
• High output voltage accuracy
• Low quiescent current
• Thermal shutdown protection

Package

LD2982AM47R is available in a small surface-mount package, such as SOT-23 or DFN.

Essence

The essence of LD2982AM47R lies in its ability to provide stable and regulated voltage for various electronic devices.

Packaging/Quantity

Typically, LD2982AM47R is packaged in reels or tubes, with quantities varying depending on the manufacturer's specifications.

Specifications

• Input Voltage Range: 2.5V to 16V
• Output Voltage: 4.7V
• Dropout Voltage: 300mV (typical)
• Quiescent Current: 50µA (typical)
• Maximum Output Current: 50mA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

LD2982AM47R has three pins:

1. VIN (Input Voltage): Connects to the input voltage source.
2. VOUT (Output Voltage): Provides the regulated output voltage.
3. GND (Ground): Connected to the ground reference of the circuit.

Functional Features

• Low dropout voltage ensures efficient regulation even when the input voltage is close to the desired output voltage.
• High output voltage accuracy guarantees precise voltage regulation.
• Low quiescent current minimizes power consumption when the load is light.
• Thermal shutdown protection prevents the device from overheating.

Advantages and Disadvantages

Advantages

• Reliable voltage regulation
• Compact size
• Wide operating temperature range
• Low power consumption

Disadvantages

• Limited maximum output current
• Requires external components for stability

Working Principles

LD2982AM47R operates based on the principle of a linear voltage regulator. It uses a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. The internal circuitry compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a stable output voltage.

Detailed Application Field Plans

LD2982AM47R finds applications in various electronic devices, including but not limited to: - Battery-powered devices - Portable audio players - Mobile phones - Digital cameras - Wireless communication modules

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to LD2982AM47R are: - LM1117-4.7 - LT1763-4.7 - MCP1700-4.7

These models offer similar voltage regulation capabilities and can be used as substitutes depending on specific requirements.

In conclusion, LD2982AM47R is a voltage regulator with excellent characteristics, making it suitable for a wide range of applications. Its compact size, low power consumption, and reliable performance make it a popular choice among electronic designers.

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