LD1086D2T33

Product Overview

• Category: Integrated Circuit
• Use: Voltage Regulator
• Characteristics: Low Dropout, 3.3V Output
• Package: TO-220
• Essence: LD1086D2T33 is a voltage regulator integrated circuit that provides a stable output voltage of 3.3V with low dropout characteristics. It is commonly used in electronic devices to regulate and maintain a constant voltage level.
• Packaging/Quantity: The LD1086D2T33 is available in a TO-220 package, which is a widely used through-hole package type. It is typically sold in reels or tubes containing multiple units.

Specifications

• Input Voltage Range: 4.5V - 20V
• Output Voltage: 3.3V
• Output Current: Up to 1.5A
• Dropout Voltage: 1.15V (typical)
• Quiescent Current: 5mA (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LD1086D2T33 has three pins:

1. Input (IN): This pin is connected to the input voltage source.
2. Output (OUT): This pin provides the regulated output voltage of 3.3V.
3. Ground (GND): This pin is connected to the ground reference.

Functional Features

• Low Dropout: The LD1086D2T33 has a low dropout voltage, allowing it to regulate the output voltage even when the input voltage is close to the desired output voltage.
• High Output Current: With a maximum output current of 1.5A, this voltage regulator can power a wide range of electronic components and circuits.
• Thermal Protection: The IC incorporates thermal shutdown and current limit protection features to prevent damage due to excessive heat or overcurrent conditions.
• Stable Output Voltage: The LD1086D2T33 provides a stable output voltage of 3.3V, ensuring consistent performance of connected devices.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient regulation even with small input-output voltage differentials. - High output current capability allows for powering various electronic components. - Thermal protection features enhance reliability and prevent damage from overheating.

Disadvantages: - Limited output voltage options, as it only provides a fixed 3.3V output. - Requires external capacitors for stability and noise reduction.

Working Principles

The LD1086D2T33 is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with a fraction of the output voltage, adjusting the pass transistor's resistance to maintain a constant output voltage. The dropout voltage is minimized by using a PNP pass transistor in conjunction with a PMOS device.

Detailed Application Field Plans

The LD1086D2T33 is commonly used in various applications, including but not limited to:

1. Power supplies for microcontrollers and digital circuits.
2. Battery-powered devices requiring a stable 3.3V power source.
3. Industrial control systems and automation equipment.
4. Automotive electronics, such as infotainment systems and engine control units.
5. Communication equipment, including routers and modems.

Detailed and Complete Alternative Models

1. LM1117-3.3: Similar to LD1086D2T33, this voltage regulator also provides a fixed 3.3V output with low dropout characteristics.
2. LT1086CT-3.3: Another alternative with similar specifications, offering a 3.3V output voltage and low dropout performance.
3. TPS7A3301: This integrated circuit provides a 3.3V fixed output voltage with ultra-low dropout characteristics.

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

Word count: 511 words