The SA1117BH-3.3 is a low dropout (LDO) linear regulator manufactured by Silan. It is designed to provide a stable and accurate 3.3V output voltage from a higher input voltage. It's used in a variety of applications needing regulated voltage, low noise, and good efficiency.

Applications

• Post-regulation for switching power supplies
• Battery-powered devices
• Microcontroller power supply
• Logic power supply
• Portable electronic devices

Features

• Low dropout voltage: Typically 1.2V at 1A output current
• Output voltage accuracy: ±2%
• Maximum output current: 1A
• Internal current limiting and thermal shutdown protection
• Fixed output voltage of 3.3V
• Available in TO-252 package
• Low quiescent current

Benefits

• Stable output voltage: Ensures stable 3.3V operation for connected components.
• High efficiency: Low dropout minimizes power loss and improves efficiency.
• Overload protection: Current limiting and thermal shutdown protect against damage due to overloads.
• Good thermal performance: TO-252 package allows for efficient heat dissipation.
• Ease of use: Fixed output voltage simplifies design.

Additional Details

The SA1117BH-3.3 operates with a wide input voltage. Dropout voltage is measured at a junction temperature of 25°C. Quiescent current is minimal. This regulator is stable with ceramic output capacitors. The TO-252 package provides excellent thermal characteristics. Ideal for various consumer, industrial, and automotive applications. Operating temperature typically ranges from -40°C to +125°C.