ZLDO1117G25TA

Product Overview

Category

ZLDO1117G25TA belongs to the category of low-dropout voltage regulators.

Use

This product is commonly used in electronic circuits to regulate and stabilize voltage levels.

Characteristics

• Low dropout voltage: The ZLDO1117G25TA has a very low dropout voltage, ensuring efficient regulation even when the input voltage is close to the desired output voltage.
• High accuracy: It provides precise voltage regulation, minimizing fluctuations and ensuring stable performance.
• Thermal shutdown protection: The regulator includes built-in thermal shutdown protection, preventing damage due to excessive heat.
• Current limiting: It incorporates current limiting functionality, safeguarding against overcurrent conditions.

Package

The ZLDO1117G25TA comes in a compact surface-mount package, making it suitable for space-constrained applications.

Essence

The essence of ZLDO1117G25TA lies in its ability to provide reliable and accurate voltage regulation in various electronic circuits.

Packaging/Quantity

This product is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

• Input Voltage Range: 2.5V - 15V
• Output Voltage: 2.5V
• Dropout Voltage: 0.3V (typical)
• Maximum Output Current: 800mA
• Line Regulation: ±0.05% (typical)
• Load Regulation: ±0.1% (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The ZLDO1117G25TA features a standard three-pin configuration:

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

Functional Features

• Voltage Regulation: The ZLDO1117G25TA maintains a constant output voltage of 2.5V, regardless of variations in the input voltage or load conditions.
• Low Dropout: With a low dropout voltage of only 0.3V, this regulator can operate efficiently even when the input voltage is close to the desired output voltage.
• Thermal Shutdown Protection: The built-in thermal shutdown protection prevents the regulator from overheating, ensuring its longevity and reliability.
• Current Limiting: The current limiting feature safeguards against excessive current flow, protecting both the regulator and the connected circuitry.

Advantages and Disadvantages

Advantages

• High accuracy and stability in voltage regulation.
• Low dropout voltage ensures efficient operation.
• Compact package suitable for space-constrained applications.
• Built-in thermal shutdown protection enhances reliability.

Disadvantages

• Limited maximum output current (800mA).
• Fixed output voltage may not be suitable for all applications requiring variable voltages.

Working Principles

The ZLDO1117G25TA operates based on the principle of a low-dropout voltage regulator. It utilizes a pass transistor that adjusts its resistance to maintain a constant output voltage, compensating for changes in the input voltage and load conditions. By comparing the output voltage with a reference voltage, the regulator continuously adjusts the pass transistor to achieve the desired output voltage.

Detailed Application Field Plans

The ZLDO1117G25TA finds applications in various electronic systems, including but not limited to: - Battery-powered devices - Portable consumer electronics - Automotive electronics - Industrial control systems - Communication equipment

Detailed and Complete Alternative Models

1. ZLDO1117G33TA: Similar to ZLDO1117G25TA, but with an output voltage of 3.3V.
2. ZLDO1117G50TA: Similar to ZLDO1117G25TA, but with an output voltage of 5.0V.
3. ZLDO1117G12TA: Similar to ZLDO1117G25TA, but with an output voltage of 1.2V.

These alternative models provide different output voltage options to cater to diverse application requirements.

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