Background

The TC110333ECTTR is a high-performance, monolithic, step-down DC-DC switching regulator developed by China-based Tiger Corporation. The device combines a current-mode PWM controller with a 125 mΩ high-side MOSFET and a Lo-side NMOSFET. With a wide input voltage range from 3.6 V to 18 V, the device provides excellent efficiency and a wide output voltage range from 0.6 V to 16 V. The high-side MOSFET provides excellent efficiency, low EMI, and a low standby current. It also features an adjustable switching frequency and an internal soft start circuit.

Application Field

The TC110333ECTTR is ideal for a wide range of power supply applications, such as notebook computers, tablets, smartphones, digital cameras, portable game consoles, and other consumer electronics. It is also suitable for automotive power systems, providing a wide operating temperature range and high reliability. The device is also ideal for industrial applications, offering wide input voltage ranges, high efficiency, and low EMI emissions.

Working Principle

The TC110333ECTTR is a current mode PWM controller with an integrated 125mΩ high side MOSFET and an integrated Lo-side NMOSFET. The device features a programmable frequency range of 300kHz to 1.2MHz. An internal soft start circuit limits the inrush current and provides a smooth transition between the start and steady state operation. The control loop operates in a current-mode control with a fixed frequency, increasing the stability of the system and providing precise current sharing in parallel applications. The over-temperature protections ensure safe operation whenever the temperature of the device exceeds the maximum limit.

Conclusion

The TC110333ECTTR is a high-performance, monolithic, step-down DC-DC switching regulator from Tiger Corporation. The device offers an extended operating temperature range and high reliability, making it suitable for a range of high-end consumer applications. It features an adjustable switching frequency, programmable soft start, and over-temperature protection. The device also features a current-mode PWM controller with an integrated 125 mΩ high-side MOSFET, while a low-side NMOSFET provides excellent efficiency and low standby current.