The AZ1117R-3.3 is a low dropout positive voltage regulator from BCD Semiconductor Manufacturing Limited. It's designed to provide a stable and reliable 3.3V output voltage with a low dropout voltage, making it suitable for a variety of applications where efficient power regulation is required. This regulator is known for its simplicity and robust performance, offering protection features that enhance system reliability.

Applications

• Post Regulation for Switching Power Supply
• Linear Regulator for Mother Board
• Battery Charger
• Microcontroller Power Supply

Features

• Low Dropout Voltage: Ensures stable output even with a small difference between input and output voltages.
• Output Voltage: 3.3V fixed output voltage.
• Output Current: Capable of delivering up to 1A of output current.
• Thermal Overload Protection: Protects the regulator from damage due to excessive heat.
• Short Circuit Protection: Prevents damage from short circuits at the output.
• Reverse Polarity Protection: Protects the regulator from damage if the input voltage is applied with reverse polarity.

Benefits

• Stable Power Supply: Provides a consistent 3.3V output, essential for sensitive electronic components.
• High Efficiency: Low dropout voltage maximizes efficiency, reducing power dissipation and heat generation.
• Enhanced Reliability: Protection features safeguard against common electrical faults, extending the lifespan of the regulator and the overall system.
• Easy to Use: Requires minimal external components for operation, simplifying circuit design.
• Cost-Effective: Provides a reliable and efficient voltage regulation solution at a competitive price.

Additional Details

The AZ1117R-3.3 is typically available in several package types, including SOT-223 and TO-252. The regulator requires input and output capacitors for stability. The recommended capacitor values can be found in the device datasheet. It's important to consider the thermal characteristics of the package and ensure that adequate heat sinking is provided if the regulator will be operating at high output currents or high ambient temperatures. The datasheet provides detailed information on the regulator's electrical characteristics, thermal resistance, and recommended operating conditions.