LD2982BM30R

Product Overview

Category

The LD2982BM30R belongs to the category of voltage regulators.

Use

It is primarily used for regulating voltage in electronic circuits.

Characteristics

• Low dropout voltage
• Low quiescent current
• High output voltage accuracy
• Thermal shutdown protection
• Short-circuit current limit

Package

The LD2982BM30R comes in a small outline package (SOT-23) which is suitable for surface mount applications.

Essence

The essence of LD2982BM30R lies in its ability to provide stable and regulated voltage output, ensuring proper functioning of electronic devices.

Packaging/Quantity

The LD2982BM30R is typically packaged in reels or tape and reel format. The quantity per reel is usually specified by the manufacturer.

Specifications

• Input Voltage Range: 2.5V to 16V
• Output Voltage: 3.0V
• Dropout Voltage: 300mV at 100mA
• Quiescent Current: 50µA
• Output Current: Up to 100mA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LD2982BM30R has three pins:

1. VIN (Input Voltage): This pin is connected to the input voltage source.
2. GND (Ground): This pin is connected to the ground reference.
3. VOUT (Output Voltage): This pin provides the regulated output voltage.

Functional Features

• Low Dropout Voltage: The LD2982BM30R exhibits low dropout voltage, allowing it to regulate voltage even when the input voltage is close to the desired output voltage.
• Low Quiescent Current: It consumes very low quiescent current, making it suitable for battery-powered applications where power efficiency is crucial.
• High Output Voltage Accuracy: The LD2982BM30R provides high output voltage accuracy, ensuring precise regulation of the desired voltage level.
• Thermal Shutdown Protection: It incorporates thermal shutdown protection, which prevents the device from overheating and ensures its longevity.
• Short-Circuit Current Limit: The LD2982BM30R has a built-in short-circuit current limit feature that protects the device and the connected circuitry from excessive current flow during a short circuit event.

Advantages and Disadvantages

Advantages

• Stable and regulated output voltage
• Low dropout voltage
• Low quiescent current consumption
• High output voltage accuracy
• Thermal shutdown protection
• Short-circuit current limit for added safety

Disadvantages

• Limited output current capacity (up to 100mA)
• Restricted input voltage range (2.5V to 16V)

Working Principles

The LD2982BM30R operates based on the principle of linear voltage regulation. It uses a pass transistor in conjunction with feedback circuitry to maintain a constant output voltage regardless of variations in the input voltage or load conditions. By comparing the output voltage with a reference voltage, the regulator adjusts the pass transistor to ensure the desired output voltage is maintained.

Detailed Application Field Plans

The LD2982BM30R finds applications in various electronic devices and systems, including but not limited to: - Battery-powered devices - Portable consumer electronics - Embedded systems - Automotive electronics - Industrial control systems - Communication equipment

Detailed and Complete Alternative Models

Some alternative models to LD2982BM30R that offer similar functionality include: - LM1117-3.0 - MCP1703-3002E/DB - TS2937CP-3.0

These alternatives can be considered based on specific requirements and availability.

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