The 1117-3.3 from Xinbole is a high-performance low dropout (LDO) linear voltage regulator IC designed to provide a stable 3.3V output with up to 1A current capability. It is widely used in modern electronic systems such as microcontrollers, FPGA/ASIC power rails, communication modules, IoT devices, and embedded control circuits that require precise, low-noise, and efficient voltage regulation.
Built with advanced LDO regulation technology, the 1117-3.3 delivers very low dropout voltage, allowing efficient operation even when the input voltage is only slightly higher than 3.3V. It ensures low output ripple, excellent load regulation, and fast transient response, maintaining stable performance under dynamic load conditions. Compared to higher dropout or older regulator series, it provides improved energy efficiency, better thermal performance, and enhanced reliability in low-voltage digital systems.
The device is available in both SOT223 and SOT89 packages, offering flexible design options. The SOT223 package provides excellent thermal dissipation for higher current applications, while the SOT89 package supports compact and space-saving PCB layouts.
With its stable output, high efficiency, and robust protection features, the 1117-3.3 is an ideal solution for reliable 3.3V power management in modern electronics.
Key Features:
- Fixed 3.3V low dropout voltage regulator (LDO)
- Up to 1A output current capability
- Very low dropout voltage for high efficiency
- Low output ripple and stable regulation
- Fast transient response and high accuracy
- SOT223/SOT89 package flexibility
Applications:
- Microcontroller and MCU power supply
- FPGA and digital logic circuits
- IoT and communication modules
- Embedded electronic systems
- Industrial control boards
- Consumer electronics power management
