The LT3990EMSE-5#PBF is a robust and highly efficient DC/DC converter from Linear Technology, designed to meet the needs of a wide range of applications. This step-down voltage regulator is capable of delivering up to 1.2A of continuous output current with an input voltage range of 4V to 20V, making it a versatile choice for systems that require a stable 5V power supply.

Key Features

• Wide Input Voltage Range: The device can operate with an input voltage from 4V to 20V, suitable for a variety of power sources.
• Fixed Output Voltage: This model provides a fixed 5V output, which is commonly needed in digital and analog circuits.
• High Efficiency: With its integrated synchronous rectification, the LT3990EMSE-5#PBF offers high efficiency, which is critical for reducing power loss and heat generation.
• Thermal Protection: The converter includes thermal shutdown and protection to safeguard the device under high-temperature conditions.
• No Schottky Diode Required: The internal synchronous rectifier eliminates the need for an external Schottky diode, simplifying the design and saving board space.
• Low Ripple Burst Mode® Operation: Ensures low output ripple and high efficiency at light loads, making it ideal for battery-powered applications.
• Adjustable Frequency: The switching frequency can be set anywhere from 200kHz to 2.2MHz with an external resistor or synchronized to an external clock.

Applications

The LT3990EMSE-5#PBF is suitable for a variety of applications, including but not limited to:

• Automotive and Industrial Power Systems
• Portable and Battery-Powered Equipment
• Embedded Systems
• Point-of-Load Applications
• Telecommunications Infrastructure

Quality and Reliability

Linear Technology's commitment to quality and reliability is evident in the LT3990EMSE-5#PBF. The device is available in a thermally efficient MSOP-16E package, which is RoHS compliant and designed for high reliability in challenging environments. With its robust design and comprehensive protection features, this DC/DC converter is an excellent choice for critical applications that demand consistent performance and long-term durability.