LD2982AM33R

Product Overview

Category

LD2982AM33R 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 LD2982AM33R comes in a small package, typically a SOT-23-5 or similar.

Essence

The essence of LD2982AM33R lies in its ability to provide stable and regulated voltage output for various electronic applications.

Packaging/Quantity

The LD2982AM33R is commonly available in reels or tubes, with quantities varying depending on the supplier.

Specifications

• Input Voltage Range: 2.5V to 16V
• Output Voltage: 3.3V
• Dropout Voltage: 300mV at 100mA
• Quiescent Current: 50µA
• Output Current: Up to 100mA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

1. GND (Ground)
2. Vout (Output Voltage)
3. Vin (Input Voltage)
4. NC (No Connection)
5. Enable (Shutdown Control)

Functional Features

• Low dropout voltage ensures efficient regulation even with low input-output differentials.
• Low quiescent current minimizes power consumption during standby or idle states.
• High output voltage accuracy provides precise voltage regulation for sensitive components.
• Thermal shutdown protection prevents damage due to excessive temperature.
• Short-circuit current limit protects the regulator and connected devices from overcurrent conditions.

Advantages and Disadvantages

Advantages

• Compact package size allows for easy integration into space-constrained designs.
• Wide input voltage range enables compatibility with various power sources.
• Excellent voltage regulation characteristics ensure stable operation of connected circuits.
• Thermal shutdown protection enhances reliability and prevents thermal damage.

Disadvantages

• Limited output current capacity may restrict its use in high-power applications.
• Dropout voltage may cause a significant voltage drop across the regulator, affecting overall system efficiency.

Working Principles

The LD2982AM33R is a linear voltage regulator that operates by comparing the output voltage to an internal reference. It adjusts the pass transistor's resistance to maintain a constant output voltage despite changes in input voltage or load conditions. The regulator continuously monitors the output voltage and adjusts the pass transistor accordingly, ensuring a stable and regulated output.

Detailed Application Field Plans

The LD2982AM33R finds application in various electronic systems, including but not limited to: - Battery-powered devices - Portable consumer electronics - Embedded systems - Industrial control systems - Automotive electronics

Detailed and Complete Alternative Models

1. LM1117-3.3: Similar voltage regulator with higher output current capability.
2. MCP1700-3302E: Low quiescent current alternative with comparable specifications.
3. TS2950CT-3.3: Cost-effective option with similar voltage regulation characteristics.

These alternative models offer similar functionality and can be considered based on specific requirements and availability.

In conclusion, the LD2982AM33R is a voltage regulator known for its low dropout voltage, high accuracy, and thermal protection features. While it has limitations in terms of output current capacity, it is widely used in various electronic applications due to its compact size and reliable performance.