LTC3803IS6#TRMPBF - Constant Frequency Current Mode Flyback DC/DC Controller

The LTC3803IS6#TRMPBF is a high-performance, constant frequency, current mode flyback DC/DC controller designed and manufactured by Linear Technology, a brand renowned for its precision and reliability in the field of power management integrated circuits. This compact and efficient controller is housed in a TSOT-23 package, making it an excellent choice for space-constrained applications.

Key Features

• Constant Frequency Operation: The LTC3803IS6#TRMPBF operates at a fixed frequency of 300kHz, which allows for a predictable and low-noise performance, making it suitable for noise-sensitive applications.
• Wide Input Voltage Range: This controller supports a wide input voltage range from 9V to 30V, accommodating various power supply configurations and ensuring flexibility in system design.
• Low Startup and Operating Current: It features a low startup current of just 20µA and an operating current of 2mA, contributing to the overall efficiency of the power supply.
• Current Mode Control: The current mode control provides excellent line and load regulation, as well as fast transient response, which is critical for maintaining stable output voltage in varying conditions.
• Integrated Soft-Start Function: An internal soft-start function limits the inrush current during startup, which helps to prevent system stress and extends the longevity of the components.
• Output Overvoltage Protection: The LTC3803IS6#TRMPBF includes an output overvoltage protection feature that safeguards the device and the load from excessive voltage conditions.

Applications

• Isolated Telecom Power Supplies
• Industrial Power Supplies
• Medical Equipment
• Power over Ethernet (PoE) Systems
• Auxiliary Power Supplies

The LTC3803IS6#TRMPBF is designed to deliver a high level of performance in a variety of applications requiring efficient power conversion and tight regulation. Its robust feature set, combined with the quality and support from Linear Technology, makes it a reliable choice for designers looking to create compact, efficient, and stable power supply systems.