The LT1173CN8-5#PBF is a versatile step-down DC/DC converter from Linear Technology, designed to meet a wide range of power supply requirements with exceptional efficiency and reliability. This device is particularly suitable for portable and battery-powered applications due to its low quiescent current and adjustable switching frequencies.

Key Features

• Adjustable Output: The LT1173 can be configured to provide an output voltage as low as 1.25V, making it flexible for various applications.
• High Efficiency: With efficiencies up to 90%, this converter helps to maximize battery life in portable devices.
• Wide Input Voltage Range: It operates over a wide input voltage range from 3.8V to 30V, accommodating a variety of power sources.
• Fixed 5V Output Version: The LT1173CN8-5#PBF model comes with a fixed 5V output, simplifying the design for standard 5V supply needs.
• Low Quiescent Current: Its low quiescent current of only 110µA (typical) makes it ideal for battery-powered applications where power conservation is crucial.
• High Switching Frequency: The device's switching frequency can be set up to 100kHz, allowing the use of smaller, more efficient inductors and capacitors.
• Current Limit Protection: Built-in current limit protection ensures the device and the application are protected from overcurrent conditions.

Applications

• Portable Instruments
• Battery-Operated Equipment
• Cellular Phones
• Medical Devices
• Power Supply Backup
• GPS Receivers

The LT1173CN8-5#PBF is packaged in an 8-lead PDIP, providing a robust and easy-to-handle component for through-hole PCB designs. Its thermal performance is enhanced by a thermal shutdown feature, safeguarding the device under extreme operating conditions. Whether you're designing a new power system or upgrading an existing one, the LT1173CN8-5#PBF offers the performance, flexibility, and ease of use you need to create a reliable, efficient power supply.