LE33CD-TR

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - Low quiescent current - Very low output noise - High ripple rejection - Overtemperature protection - Short-circuit protection

Package: TO-92 (Transistor Outline 92)

Essence: The LE33CD-TR is a voltage regulator IC that provides a stable output voltage for various electronic devices.

Packaging/Quantity: The LE33CD-TR is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

The LE33CD-TR has the following specifications:

• Input Voltage Range: 2.5V to 16V
• Output Voltage Range: 1.2V to 12V
• Dropout Voltage: 0.4V at 100mA
• Quiescent Current: 50µA
• Output Current: 100mA
• Ripple Rejection: 70dB
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LE33CD-TR has three pins:

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

Functional Features

The LE33CD-TR offers the following functional features:

• Low dropout voltage ensures efficient regulation even with small input-output differentials.
• Low quiescent current minimizes power consumption when the load is light.
• Very low output noise provides clean and stable power for sensitive electronic components.
• High ripple rejection filters out unwanted AC signals from the input voltage.
• Overtemperature protection prevents damage due to excessive heat.
• Short-circuit protection safeguards the IC and connected devices from damage in case of a short circuit.

Advantages and Disadvantages

Advantages: - Stable output voltage regulation - Low power consumption - Minimal output noise - Protection features for enhanced reliability

Disadvantages: - Limited output current capacity (100mA) - Restricted input voltage range (2.5V to 16V)

Working Principles

The LE33CD-TR 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. The internal circuitry monitors the output voltage and adjusts the pass transistor accordingly to maintain a stable output.

Detailed Application Field Plans

The LE33CD-TR finds applications in various electronic devices, including but not limited to: 1. Battery-powered devices requiring stable voltage supply. 2. Portable audio players and headphones. 3. Microcontrollers and other digital circuits. 4. Automotive electronics. 5. Industrial control systems.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LE33CD-TR include: 1. LM1117-3.3: A 3.3V voltage regulator with similar characteristics. 2. LT1763: A low dropout voltage regulator with adjustable output voltage. 3. MCP1700: A low quiescent current voltage regulator suitable for battery-powered applications.

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

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