The LTC3479 from Linear Technology is a high-efficiency synchronous step-up DC/DC converter with an adjustable output voltage. It features a wide input voltage range of 2.5V to 30V and an output voltage range of 2.5V to 30V. The LTC3479 can deliver up to 3A of output current and has a peak efficiency of 96%. It is ideal for a wide range of applications, including battery-powered devices, portable electronics, and industrial systems.

The LTC3479 uses a constant on-time (COT) control architecture to achieve high efficiency and fast load response. The COT architecture also provides excellent line and load regulation. The LTC3479 also features a number of other features that make it a versatile and easy-to-use DC/DC converter, including:

• Adjustable soft-start
• Programmable overcurrent protection
• Thermal shutdown
• Power-good indicator

The LTC3479 is available in a small, 16-pin TSSOP package. It is also available in a high-temperature version (LTC3479H) that can operate at temperatures up to 125°C.

Applications

The LTC3479 is ideal for a wide range of applications, including:

• Battery-powered devices, such as smartphones, tablets, and laptops
• Portable electronics, such as digital cameras, MP3 players, and GPS devices
• Industrial systems, such as motor control, power supplies, and test equipment

Features and Benefits

• High efficiency: up to 96% peak efficiency
• Wide input voltage range: 2.5V to 30V
• Wide output voltage range: 2.5V to 30V
• Adjustable output voltage
• Constant on-time (COT) control architecture for high efficiency and fast load response
• Excellent line and load regulation
• Adjustable soft-start
• Programmable overcurrent protection
• Thermal shutdown
• Power-good indicator
• Small, 16-pin TSSOP package
• High-temperature version available (LTC3479H)

Example Applications

• Battery-powered LED driver
• Portable lithium-ion battery charger
• 12V to 24V power supply for industrial systems
• Motor control system
• Test equipment power supply

Conclusion

The LTC3479 is a high-performance, versatile, and easy-to-use DC/DC converter. It is ideal for a wide range of applications, including battery-powered devices, portable electronics, and industrial systems.