The AZ1117H-1.8 is a low dropout positive voltage regulator manufactured by BCD Semiconductor Manufacturing Limited. It is designed to provide a stable 1.8V output with a low dropout voltage, making it suitable for applications where the input voltage is close to the desired output voltage.

Applications

• Post regulators for switching power supplies
• Battery chargers
• Microprocessor power supplies
• Motherboard power supplies
• Voltage regulation in various electronic devices

Features

• Low Dropout Voltage: Ensures stable output voltage even with a small difference between input and output voltages.
• High Output Current: Capable of delivering up to 1A of output current.
• Overcurrent Protection: Includes built-in overcurrent protection to prevent damage from excessive current draw.
• Thermal Shutdown: Incorporates thermal shutdown circuitry to protect the device from overheating.
• Stable with Low ESR Capacitors: Operates stably with low equivalent series resistance (ESR) ceramic output capacitors.

Benefits

• Efficient Power Regulation: Low dropout voltage improves efficiency and reduces power dissipation.
• Reliable Operation: Overcurrent protection and thermal shutdown enhance device reliability.
• Stable Output: Provides a stable and accurate 1.8V output voltage.
• Versatile Application: Suitable for a wide range of voltage regulation applications.
• Simplified Design: Stable operation with low ESR capacitors simplifies circuit design.

Additional Details

The AZ1117H-1.8 typically comes in a SOT-223 package. Key specifications include an output voltage of 1.8V, a maximum output current of 1A, and a dropout voltage of typically 1.1V at 800mA. The operating temperature range is from -40°C to +125°C. The part is also RoHS compliant. It is important to note that this part is designated as END-OF-LIFE by the manufacturer.