LX8117-28CST

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - High output current capability - Thermal shutdown protection - Short circuit current limit - Wide input voltage range

Package: CST-3 (SOT-223)

Essence: The LX8117-28CST is a voltage regulator IC that provides a stable output voltage with low dropout. It is designed to regulate the voltage in various electronic devices and systems.

Packaging/Quantity: The LX8117-28CST is available in a CST-3 package, also known as SOT-223. It is typically sold in reels or tubes containing multiple units.

Specifications

• Input Voltage Range: 2.5V - 6V
• Output Voltage: 2.8V
• Dropout Voltage: 0.15V @ 500mA
• Output Current: Up to 1A
• Quiescent Current: 75µA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LX8117-28CST has three pins:

1. VIN (Pin 1): Input voltage pin.
2. GND (Pin 2): Ground reference pin.
3. VOUT (Pin 3): Output voltage pin.

Functional Features

• Low Dropout Voltage: The LX8117-28CST has a low dropout voltage of only 0.15V at 500mA output current, ensuring efficient power conversion.
• High Output Current Capability: With a maximum output current of 1A, it can handle a wide range of load requirements.
• Thermal Shutdown Protection: The IC incorporates thermal shutdown protection, which prevents damage due to excessive temperature.
• Short Circuit Current Limit: It features a short circuit current limit to protect the IC and connected devices from excessive current flow.
• Wide Input Voltage Range: The LX8117-28CST can operate with an input voltage range of 2.5V to 6V, making it suitable for various applications.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient power conversion. - High output current capability allows for versatile usage. - Thermal shutdown protection prevents damage from overheating. - Short circuit current limit protects the IC and connected devices. - Wide input voltage range accommodates different application requirements.

Disadvantages: - Limited output voltage options (only 2.8V in this model). - Not suitable for applications requiring higher output voltages.

Working Principles

The LX8117-28CST is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage and adjusts the pass transistor accordingly to maintain a stable output voltage. The dropout voltage is minimized by utilizing a low resistance pass element.

Detailed Application Field Plans

The LX8117-28CST is commonly used in various electronic devices and systems, including but not limited to: - Battery-powered devices - Portable audio players - Mobile phones - Digital cameras - Wireless communication modules - Industrial control systems

Detailed and Complete Alternative Models

Some alternative models to the LX8117-28CST include: - LM1117-2.8 - LT1086-2.8 - ADP3339-2.8 - TPS7250-28

These models offer similar functionality and characteristics, providing alternatives for different design requirements.

Word count: 350 words