Introducing the LT1175 from Linear Technology

The LT1175 is a high-performance, low-dropout negative voltage regulator designed to deliver a continuous output current of up to 500mA. This robust component from Linear Technology is a versatile solution for a wide range of power supply applications where efficiency and reliability are paramount.

Key Features

• Adjustable Output: The LT1175's output voltage can be set from -2.5V to -20V, providing the flexibility needed to cater to various circuit requirements.
• Low Dropout Voltage: With a typical dropout voltage of just 0.4V at full load, the LT1175 ensures efficient operation, even at lower input voltages, making it ideal for battery-powered devices.
• High Accuracy: The output voltage is guaranteed to be within ±5% over the full line, load, and temperature range, ensuring stable performance in all conditions.
• Low Quiescent Current: The device features a low quiescent current, typically 500µA, which is further reduced to 10µA in shutdown mode, making it suitable for power-sensitive applications.
• Thermal Protection: The LT1175 includes an internal thermal limiting circuit that protects the device under over-temperature conditions.
• Stability: The regulator is stable with aluminum, tantalum, or ceramic capacitors, ensuring a broad compatibility with various types of external components.

Applications

The LT1175 is a versatile component that can be employed in numerous applications, such as:

• Portable, battery-operated equipment
• Automotive power supplies
• Industrial power supplies
• Power supplies for instrumentation and control systems

Package Options and Part Numbers

The LT1175 is available in several package options, including the 5-lead TO-220, the 5-lead DD-Pak, and the 3-lead SOT-223, which provide flexibility for various PCB layouts and thermal performance requirements. The product family includes several fixed output voltages and an adjustable version, with part numbers such as LT1175CT (TO-220) and LT1175CS (DD-Pak).

With its combination of features, the LT1175 from Linear Technology is an excellent choice for designers looking for a reliable and efficient negative voltage regulator for their next project.