LD1117DT33CTR

Product Overview

• Category: Voltage Regulator
• Use: LD1117DT33CTR is a low dropout voltage regulator designed to provide a fixed output voltage of 3.3V with a maximum current of 800mA.
• Characteristics: It offers a low dropout voltage, high accuracy, and low quiescent current, making it suitable for various applications.
• Package: LD1117DT33CTR comes in a surface mount SOT-223 package.
• Essence: The essence of LD1117DT33CTR lies in its ability to regulate the input voltage and provide a stable output voltage of 3.3V.
• Packaging/Quantity: LD1117DT33CTR is typically sold in reels containing a quantity of 2500 units.

Specifications

• Input Voltage Range: 4.2V to 15V
• Output Voltage: 3.3V
• Maximum Output Current: 800mA
• Dropout Voltage: 1.2V (at 800mA)
• Quiescent Current: 5mA
• Line Regulation: 0.2% (typical)
• Load Regulation: 0.4% (typical)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LD1117DT33CTR has three pins:

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

Functional Features

• Low dropout voltage: LD1117DT33CTR can operate with a very small voltage difference between the input and output, ensuring efficient power conversion.
• High accuracy: It provides a stable output voltage with low deviation from the desired value.
• Low quiescent current: LD1117DT33CTR consumes minimal current when there is no load, reducing power consumption.
• Overcurrent and thermal protection: The regulator includes built-in protection features to prevent damage due to excessive current or temperature.

Advantages and Disadvantages

Advantages: - Stable and accurate output voltage - Low dropout voltage - Low quiescent current - Built-in protection features

Disadvantages: - Limited maximum output current (800mA) - SOT-223 package may require surface mount soldering expertise

Working Principles

LD1117DT33CTR 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, it ensures a stable output voltage even with varying input voltages.

Detailed Application Field Plans

LD1117DT33CTR finds applications in various electronic devices and systems, including but not limited to: - Battery-powered devices - Microcontrollers and microprocessors - Communication equipment - Industrial control systems - Automotive electronics - Consumer electronics

Alternative Models

Some alternative models that offer similar functionality to LD1117DT33CTR include: - LM1117-3.3 - LT1117-3.3 - MCP1703-3.3

These alternatives can be considered based on specific requirements and availability.

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