ZLDO1117K25TC

Product Overview

Category

ZLDO1117K25TC belongs to the category of Low Dropout Voltage Regulators (LDOs).

Use

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

Characteristics

• Low dropout voltage: The ZLDO1117K25TC has a 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 voltage fluctuations.
• Thermal protection: The device incorporates thermal shutdown circuitry to prevent damage due to excessive heat.
• Current limiting: It includes current limit protection to safeguard against overcurrent conditions.

Package

The ZLDO1117K25TC is available in a compact surface-mount package, making it suitable for space-constrained applications.

Essence

The essence of ZLDO1117K25TC lies in its ability to provide stable and regulated voltage output, ensuring reliable operation of electronic devices.

Packaging/Quantity

This product is typically packaged in reels or tubes, with varying quantities depending on the manufacturer's specifications.

Specifications

• Input Voltage Range: 2.5V - 15V
• Output Voltage: 2.5V
• Maximum Output Current: 800mA
• Dropout Voltage: 0.6V (typical)
• Line Regulation: ±0.05% (typical)
• Load Regulation: ±0.1% (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The ZLDO1117K25TC features a standard three-pin configuration:

1. VIN (Input): This pin is connected to 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 ZLDO1117K25TC maintains a constant output voltage, compensating for variations in input voltage and load conditions.
• Low Dropout: It operates efficiently even when the input voltage is only slightly higher than the desired output voltage.
• Overcurrent Protection: The device includes current limit protection to prevent damage due to excessive current flow.
• Thermal Shutdown: In case of excessive heat, the thermal shutdown circuitry activates, protecting the device from damage.

Advantages and Disadvantages

Advantages

• High accuracy and stability in voltage regulation.
• Compact package suitable for space-constrained applications.
• Wide operating temperature range allows for versatile usage.
• Built-in overcurrent and thermal protection enhance reliability.

Disadvantages

• Limited output current capacity (800mA).
• Dropout voltage may cause power dissipation in certain scenarios.

Working Principles

The ZLDO1117K25TC utilizes a voltage reference and feedback mechanism to maintain a stable output voltage. When the input voltage exceeds the desired output voltage, the internal control circuitry adjusts the pass transistor to regulate the output voltage. The dropout voltage is minimized to ensure efficient operation even with low input-output voltage differentials.

Detailed Application Field Plans

The ZLDO1117K25TC finds extensive application 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. LM1117-2.5: A popular alternative with similar specifications and performance characteristics.
2. LT1763-2.5: Offers lower dropout voltage and higher output current compared to ZLDO1117K25TC.
3. ADP3339-2.5: Provides enhanced line and load regulation capabilities.

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

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