The LT1117IST-1.8 is a robust low dropout positive voltage regulator designed by Linear Technology to provide a stable 1.8V output. This component is an ideal choice for applications requiring up to 800mA of output current with a low dropout voltage and excellent line and load regulation. The LT1117IST-1.8 is especially well-suited for low voltage microprocessor applications, providing precise voltage control and a high level of protection.

Key Features

• Output Voltage: Fixed at 1.8V, ensuring compatibility with a variety of low voltage microprocessors and digital logic circuits.
• Output Current: Capable of delivering up to 800mA, making it suitable for high current applications.
• Low Dropout Voltage: Maintains regulation with a minimal difference between the input and output voltage, which enhances efficiency and allows operation over a wider range of input voltages.
• Adjustable Versions: While this model provides a fixed output, the LT1117 series also includes versions that allow the output voltage to be set by the user with external resistors.
• Protection Features: Includes overcurrent and overtemperature protection to ensure the longevity and reliability of both the regulator and the powered device.
• Stable with Low ESR Capacitors: The LT1117IST-1.8 is stable with output capacitors as low as 10µF, making it compatible with modern low equivalent series resistance (ESR) capacitors.

Applications

The LT1117IST-1.8 is versatile and can be used in a variety of applications, including:

• Low voltage logic supplies
• Post regulation for switching supplies
• Battery-powered equipment
• Linear power supplies

Package and Quality

Encased in a thermally efficient SOT-223 package, the LT1117IST-1.8 provides a compact footprint while ensuring adequate heat dissipation for reliable operation under full load conditions. Linear Technology's commitment to high quality ensures that this voltage regulator delivers consistent performance and reliability.