LTC3816IUHF#PBF

The LTC3816IUHF#PBF (hereinafter referred to as the LTC3816) is a non-synchronous, current mode, step-down (buck) switch-mode controller for high-current, high-voltage applications. This device offers excellent transient response under fast load transient conditions and its dead time control circuit ensures very low peak current and no current overlap between low-side and high-side switches. It provides accurate, low-noise power for applications such as distributed power systems, DC-DC converter applications, automotive, and industrial power supplies.

Overview

The LTC3816 has a wide operating input voltage range of 9V up to 55V and is capable of supplying up to 15A of output current. It uses an internal 4.0V voltage reference with external gain adjustment to provide an accurate regulated output voltage. Additional features include programmable switching frequency and adjustable soft-start and over-current protection. The device also features a temperature sensing circuit to accommodate thermal derating.

Performance

The output voltage of the LTC3816 can be set through a resistor divider network and/or an external voltage reference. It also has programmable switching frequency range of 200 kHz to 2.2 MHz, which can be adjusted by an external resistor and capacitor. The device also has an adjustable soft-start circuit that helps reduce power surges at start-up, and an adjustable over-current protection circuit that can be tuned to the load current requirements. The LTC3816 also utilizes an internal device temperature sensing circuit that provides thermal protection and derating.

Features and Benefits

The LTC3816 is an ideal choice for high-current, high-voltage applications that require high-efficiency and small form factor solutions. Its wide input voltage range and accurate voltage regulation makes it suitable for distributed power systems and industrial power supply designs. The programmable switching frequency and adjustable soft-start and over-current protection make the device easy to use, while the temperature sensing circuit helps protect against excessive junction temperatures. In addition, the LTC3816’s high efficiency, small package footprint, and low-noise operation make it an ideal choice for modern power converters.

Conclusion

The LTC3816IUHF#PBF is a high-current, high-voltage, non-synchronous, current-mode, step-down (buck) switch-mode controller for distributed power systems and other industrial power converters. This device has a wide operating input voltage range, excellent transient response, and accurate voltage regulation. It also has a programmable switching frequency and adjustable soft-start and over-current protection. In addition, the device has an internal temperature sensing circuit for thermal protection and derating. With its high efficiency and small form factor, the LTC3816 is an ideal choice for modern power supply designs.