EZ1117ACSTTRT

Product Overview

• Category: Voltage Regulator
• Use: To regulate and stabilize voltage in electronic circuits
• Characteristics: Low dropout, high accuracy, low noise, thermal shutdown protection
• Package: SOT-223
• Essence: Linear regulator
• Packaging/Quantity: Tape and reel, 3000 units per reel

Specifications

• Input Voltage Range: 4.5V to 15V
• Output Voltage Range: 1.2V to 12V
• Output Current: Up to 1A
• Dropout Voltage: 1.1V (typical)
• Line Regulation: ±0.2% (typical)
• Load Regulation: ±0.4% (typical)
• Quiescent Current: 5mA (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The EZ1117ACSTTRT has three pins:

1. VIN - Input voltage pin
2. GND - Ground pin
3. VOUT - Output voltage pin

Functional Features

• Low dropout voltage ensures efficient regulation even with small input-output differentials.
• High accuracy provides precise voltage regulation for sensitive electronic components.
• Low noise output minimizes interference in audio and RF applications.
• Thermal shutdown protection prevents damage due to excessive temperature.

Advantages and Disadvantages

Advantages

• Easy to use and integrate into various electronic circuits.
• Wide input voltage range allows compatibility with different power sources.
• Excellent line and load regulation ensure stable output voltage under varying conditions.
• Compact SOT-223 package enables space-saving designs.
• Thermal shutdown protection enhances reliability and safety.

Disadvantages

• Limited output current capability compared to higher-rated voltage regulators.
• Dropout voltage may cause power dissipation and efficiency loss in certain applications.

Working Principles

The EZ1117ACSTTRT is a linear regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage from a voltage divider network. The pass transistor adjusts its resistance to maintain a constant output voltage, compensating for changes in input voltage and load conditions.

Detailed Application Field Plans

The EZ1117ACSTTRT is commonly used in various electronic devices and systems, including:

1. Power supplies for microcontrollers, sensors, and other low-power digital circuits.
2. Battery-powered devices requiring stable voltage levels, such as portable audio players and handheld instruments.
3. Automotive electronics, providing regulated voltage for sensors, actuators, and control modules.
4. Industrial automation systems, ensuring reliable voltage for PLCs, motor drives, and sensors.
5. Communication equipment, including routers, switches, and wireless access points.

Detailed and Complete Alternative Models

1. LM1117 - A popular alternative with similar specifications and pin configuration.
2. LT1117 - Offers lower dropout voltage and higher output current capability.
3. ADP3339 - Provides ultra-low dropout voltage and high accuracy for demanding applications.
4. MAX603 - Features low quiescent current and wide input voltage range for battery-powered devices.
5. TPS7A47 - Offers high PSRR (Power Supply Rejection Ratio) and noise filtering capabilities.

(Note: This list is not exhaustive and there are many other alternative models available in the market.)

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