The KIA1117DT-1.8 is a low dropout (LDO) linear regulator manufactured by Fairchild/ON Semiconductor. This regulator is designed to provide a stable 1.8V output voltage with a low dropout voltage, making it suitable for battery-powered and other low-voltage applications. It provides excellent regulation and is commonly used to power sensitive electronic components.

Applications

• Portable Electronics
• Battery-Powered Devices
• Microcontroller Power Supplies
• Post-Regulation for Switching Power Supplies
• Noise-Sensitive Circuits

Features

• 1.8V Fixed Output Voltage
• Low Dropout Voltage: Ensures regulation with minimal input-output voltage difference.
• Low Quiescent Current: Minimizes power consumption in standby mode.
• Overcurrent Protection: Protects the regulator and load from damage.
• Thermal Overload Protection: Prevents overheating and ensures reliable operation.

Benefits

• Stable Output Voltage: Provides a clean and reliable power source for sensitive components.
• Extended Battery Life: Low quiescent current maximizes operating time in battery-powered applications.
• Simplified Design: Requires minimal external components.
• Enhanced System Reliability: Overcurrent and thermal overload protection prevent damage.
• Compact Size: Suitable for use in small form factor devices.

Additional Details

The KIA1117DT-1.8 typically has a dropout voltage of around 1.2V at the rated output current. It requires a small output capacitor for stability. The input voltage range is generally from 2.5V to 6V. The device is available in a DPAK package for efficient heat dissipation. The operating temperature range is typically between -40°C and +125°C. The device is designed to provide a stable output voltage even with variations in input voltage and load current. It also offers reverse polarity protection to prevent damage from accidental connection errors.