LD2982BM35R

Product Overview

Category

The LD2982BM35R 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 LD2982BM35R comes in a small surface-mount package.

Essence

The essence of LD2982BM35R lies in its ability to provide stable and regulated voltage output.

Packaging/Quantity

The LD2982BM35R is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 2.5V to 16V
• Output Voltage: 3.5V
• 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 LD2982BM35R has three pins:

1. VIN (Input Voltage)
2. GND (Ground)
3. VOUT (Output Voltage)

Functional Features

• Low Dropout Voltage: The LD2982BM35R exhibits a low dropout voltage, ensuring efficient regulation even when the input voltage is close to the desired output voltage.
• Low Quiescent Current: With a low quiescent current, the LD2982BM35R minimizes power consumption when the load is light or idle.
• High Output Voltage Accuracy: This voltage regulator provides high output voltage accuracy, ensuring precise and reliable voltage regulation.
• Thermal Shutdown Protection: The LD2982BM35R incorporates thermal shutdown protection, preventing damage due to excessive temperature.
• Short-Circuit Current Limit: It features a short-circuit current limit, protecting the device and the circuit from damage in case of a short circuit.

Advantages and Disadvantages

Advantages

• Efficient voltage regulation with low dropout voltage
• Low power consumption due to low quiescent current
• High output voltage accuracy ensures reliable performance
• Thermal shutdown protection prevents overheating
• Short-circuit current limit protects the device and circuit

Disadvantages

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

Working Principles

The LD2982BM35R operates based on the principle of linear voltage regulation. It uses a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. By maintaining a constant voltage drop across the pass transistor, it ensures a stable output voltage regardless of variations in the input voltage or load conditions.

Detailed Application Field Plans

The LD2982BM35R finds applications in various electronic devices and systems, including but not limited to: - Battery-powered devices - Portable electronics - Automotive electronics - Industrial control systems - Communication equipment

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to LD2982BM35R are: - LM1117-3.3 - LT1761-3.3 - MCP1700-3302E

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

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