LD1117S33CTR

The LD1117S33CTR is a low-dropout (LDO) linear voltage regulator designed by STMicroelectronics. It is used to provide a stable 3.3V output voltage from a higher input voltage with minimal dropout. Here’s a detailed description:

Description:

• Type: Low-Dropout Linear Voltage Regulator
• Manufacturer: STMicroelectronics
• Package: SOT-223 (Surface-Mount Package, 3 pins)
• Output Voltage: 3.3V
• Input Voltage Range: Typically 4.5V to 15V
• Dropout Voltage: Typically 1.1V at 1A load
• Output Current: Up to 800 mA
• Temperature Range: -40°C to +125°C (Industrial grade)
• Regulation: Excellent load and line regulation

Key Features:

• Low Dropout Voltage: Allows the regulator to maintain a stable output voltage even when the input voltage is close to the output voltage.
• High Output Current: Provides up to 800 mA of current, making it suitable for a range of applications.
• Precision Output Voltage: Fixed output of 3.3V with tight tolerance, ensuring reliable performance.
• Thermal Overload Protection: Built-in thermal protection to prevent damage due to excessive temperatures.
• Short-Circuit Protection: Includes short-circuit protection to safeguard against overload conditions.
• Low Noise: Offers low output noise and ripple, making it ideal for sensitive electronic circuits.
• Compact Package: SOT-223 package for space-saving design and easy surface-mount assembly.

Applications:

• Power Supply for Digital Circuits: Provides a stable 3.3V power supply for microcontrollers, sensors, and other digital components.
• Embedded Systems: Used in various embedded systems that require reliable voltage regulation.
• Consumer Electronics: Suitable for devices that require regulated 3.3V for proper operation.
• Communication Equipment: Ensures stable operation of communication devices requiring precise voltage regulation.

Package Dimensions:

• SOT-223: A small, surface-mount package with three pins, ideal for compact circuit designs.

Reference Documents:

For detailed technical specifications, application circuits, and design guidelines, refer to the LD1117S33CTR datasheet provided by STMicroelectronics. These documents are available on STMicroelectronics’ official website.