SPX1117M3-L-1-5

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low dropout, high accuracy, adjustable output voltage
• Package: SOT-223
• Essence: Linear regulator
• Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Input Voltage Range: 2.5V to 10V
• Output Voltage Range: 1.25V to 9.5V
• Dropout Voltage: 1.1V at 800mA
• Output Current: Up to 1A
• 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 SPX1117M3-L-1-5 has three pins: 1. Vin (Pin 1): Input voltage pin 2. Vout (Pin 2): Output voltage pin 3. GND (Pin 3): Ground pin

Functional Features

• Low dropout voltage allows for efficient regulation even with small input-output differentials.
• High accuracy ensures precise output voltage regulation.
• Adjustable output voltage provides flexibility in various applications.
• Overcurrent and thermal protection safeguards the device and connected components.

Advantages and Disadvantages

Advantages: - Low dropout voltage enables efficient power conversion. - High accuracy ensures stable and reliable output voltage. - Adjustable output voltage offers versatility in different circuit designs. - Overcurrent and thermal protection enhance device reliability.

Disadvantages: - Limited maximum output current of 1A may not be suitable for high-power applications. - SOT-223 package may require additional heat dissipation measures in certain scenarios.

Working Principles

The SPX1117M3-L-1-5 is a linear voltage regulator that operates by maintaining a constant output voltage regardless of changes in the input voltage or load conditions. It achieves this through a pass transistor that adjusts its resistance to regulate the output voltage. The device compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain the desired output voltage.

Detailed Application Field Plans

The SPX1117M3-L-1-5 finds applications in various electronic devices and systems, including: 1. Battery-powered devices: Provides stable voltage regulation for portable electronics such as smartphones, tablets, and digital cameras. 2. Industrial equipment: Ensures reliable power supply for control systems, sensors, and communication modules. 3. Automotive electronics: Regulates voltage for automotive infotainment systems, lighting controls, and engine management units. 4. Computer peripherals: Offers precise voltage regulation for hard drives, optical drives, and graphics cards. 5. Telecommunications: Used in base stations, routers, and network switches to maintain stable power supply.

Detailed and Complete Alternative Models

1. LM1117: Similar linear voltage regulator with adjustable output voltage and low dropout characteristics.
2. LT1086: High current linear regulator with adjustable output voltage and low dropout voltage.
3. TPS7A47: Ultra-low noise linear regulator with adjustable output voltage and high PSRR (Power Supply Rejection Ratio).
4. ADP3339: Low dropout linear regulator with fixed output voltage options and high accuracy.
5. MAX603: Micropower, low dropout voltage regulator with adjustable output voltage and low quiescent current.

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