LD3985M30R

Product Overview

Category

LD3985M30R 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

LD3985M30R is available in a small package, such as SOT-23 or DFN.

Essence

The essence of LD3985M30R lies in its ability to provide stable and regulated voltage output.

Packaging/Quantity

Typically, LD3985M30R is packaged in reels or tubes, with a quantity of 3000 units per reel or tube.

Specifications

• Input Voltage Range: 2.5V to 6V
• Output Voltage: 3.0V
• Dropout Voltage: 200mV (typical)
• Quiescent Current: 50µA (typical)
• Output Current: Up to 150mA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

LD3985M30R has three pins:

1. VIN: Input voltage pin
2. GND: Ground pin
3. VOUT: Output voltage pin

Functional Features

• Low dropout voltage enables efficient regulation even with low input voltages.
• Low quiescent current ensures minimal power consumption during standby or idle states.
• High output voltage accuracy provides precise voltage regulation for sensitive electronic components.
• Thermal shutdown protection prevents overheating and damage to the regulator.
• Short-circuit current limit protects the regulator and connected devices from excessive current flow.

Advantages and Disadvantages

Advantages

• Small package size allows for space-saving integration into compact electronic designs.
• Wide input voltage range enables compatibility with various power sources.
• Excellent voltage regulation performance ensures stable operation of connected circuits.
• Low quiescent current minimizes power consumption, making it suitable for battery-powered applications.

Disadvantages

• Limited output current may not be sufficient for high-power applications.
• Dropout voltage may cause a slight voltage drop across the regulator.

Working Principles

LD3985M30R 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 pins. By maintaining a constant voltage difference, LD3985M30R ensures a stable output voltage regardless of variations in the input voltage.

Detailed Application Field Plans

LD3985M30R finds applications in various electronic devices and systems, including but not limited to: - Battery-powered devices - Portable consumer electronics - Industrial control systems - Automotive electronics - Medical equipment

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to LD3985M30R include: - LM1117-3.0: A popular 3.0V voltage regulator with low dropout voltage and high output current capability. - MCP1703: Another 3.0V voltage regulator known for its low quiescent current and thermal shutdown protection. - TS2940: A compact 3.0V voltage regulator with low dropout voltage and short-circuit current limit.

These alternative models can be considered based on specific application requirements and design constraints.

Word count: 443 words