XCL220B103FR-G Power Supplies - Board Mount

DC-DC converters are essential components in a vast array of electronic equipment. These devices convert direct current (DC) from one voltage level to another. Such components are used in everything from automobiles, computer peripherals, and communications equipment to home audio systems and medical instrumentation.

The XCL220B103FR-G is a highly efficient, non-isolated surface-mount DC-DC converter. It provides a regulated output from a wide 4.5V to 18V DC input. This versatile and reliable device has a maximum power dissipation of 10W; making it ideal for a wide variety of applications, including power supplies, hard disk drives, and test instrumentation.

The maximum output current is 3.3A at 4.5V input voltage and drops proportionally down to a minimum of 2.45A at 18V. It has a wide temperature range from -40°C to +85°C, and features a built-in thermal shutdown protection. The device is also short-circuit protected, with automatic re-start.

Working Principle

The XCL220B103FR-G is a highly efficient, non-isolated DC-DC converter. It operates according to an average current mode control principle. In this scheme, the average input current of the power switch is controlled by an inner current loop, using the output of an error amplifier for regulation.

The inner current loop operates from the input voltage to the output voltage. It provides a stable control system with low output voltage ripple and fast load transient response. The loop is further stabilized by an external compensation and feedback network.

Applications

The XCL220B103FR-G is ideal for applications such as mobile computing, power supplies, hard disk drives, test instrumentation, and other industrial and consumer electronics. It is suitable for use in a wide range of temperature environments, including -40°C to +85°C.

This versatile DC-DC converter features an input voltage range of 4.5V to 18V and an output voltage of 3.3V. It has a maximum output current of 3.3A at 4.5V input voltage, and a minimum of 2.45A at 18V. It is short-circuit protected and has built-in thermal shutdown protection.