L4931CPT33-TR

Product Overview

Category

L4931CPT33-TR belongs to the category of voltage regulators.

Use

It is primarily used for regulating voltage in electronic circuits.

Characteristics

• Low dropout voltage
• Output current up to 100 mA
• Fixed output voltage of 3.3V
• Thermal shutdown and short-circuit protection
• Low quiescent current

Package

The L4931CPT33-TR comes in a compact TO-220 package.

Essence

This voltage regulator ensures stable and reliable power supply by maintaining a constant output voltage.

Packaging/Quantity

The L4931CPT33-TR is typically packaged in reels containing 2,500 units.

Specifications

• Input Voltage Range: 4.4V to 20V
• Output Voltage: 3.3V
• Dropout Voltage: 0.6V (at 100mA)
• Quiescent Current: 5mA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The L4931CPT33-TR has three pins:

1. Vin (Pin 1): Input voltage pin
2. Vout (Pin 2): Output voltage pin
3. GND (Pin 3): Ground pin

Functional Features

• Low dropout voltage ensures efficient regulation even with small input-output differentials.
• Thermal shutdown protects the device from overheating.
• Short-circuit protection prevents damage in case of a short circuit.
• Low quiescent current minimizes power consumption when the load is light.

Advantages and Disadvantages

Advantages

• Stable and accurate output voltage regulation
• Compact package size
• Wide input voltage range
• Built-in thermal shutdown and short-circuit protection

Disadvantages

• Limited output current capacity (up to 100mA)
• Dropout voltage may cause power dissipation in high voltage differentials

Working Principles

The L4931CPT33-TR is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It compares the reference voltage with the feedback voltage and adjusts the pass transistor accordingly to maintain a constant output voltage.

Detailed Application Field Plans

The L4931CPT33-TR finds applications in various electronic devices, including but not limited to: - Battery-powered devices - Microcontrollers - Communication systems - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to the L4931CPT33-TR include: - LM1117-3.3 - MCP1700-3302E/TO - TS2950CT-3.3

These alternatives offer similar functionality and can be used as replacements based on specific requirements.

In conclusion, the L4931CPT33-TR is a voltage regulator that provides stable and reliable power supply in electronic circuits. Its low dropout voltage, thermal shutdown, and short-circuit protection make it suitable for a wide range of applications. However, its limited output current capacity and dropout voltage should be considered when selecting an alternative model.