LTC3624IDD#PBF

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The LTC3624IDD#PBF is a dual current-mode buck switching-regulator controller that features independent control and operation of two PWM channels. The dual-channel operation of the controller reduces cost and provides higher level of integration compared to multiple single-channel switching-regulator controllers of the same package size. Operating frequency and power-good comparator thresholds on each channel can be programmed up to 1MHz. In addition, the device features custom-programmable fixed off-Time and phase delay. The LTC3624IDD#PBF is an ideal choice for use in providing power to multiple cores in multi-processor systems.

The LTC3624IDD#PBF is designed for low-noise, high-efficiency synchronous buck regulators commonly used in notebook computers and mobile communication applications. It can be optimized for fixed switch-frequency applications with up to 100dB/oct frequency roll-off and up to 50ns of off-time adjustment. The LTC3624IDD#PBF is capable of delivering up to 40A in single-channel and up to 28A per channel in dual-channel at 12V in a very small package.

The main features of LTC3624IDD#PBF are independent control and operation of two PWM channels, custom-programmable fixed off-Time and phase delay, up to 1 MHz operating frequency per channel, external frequency synchronization, selectable source/sink, current-mode/voltage-mode operation, and programmable power-good comparator thresholds.

LTC3624IDD#PBF is targeted to replace multiple single-channel synchronous switching regulators found in high-end mobile communication applications. The device offers the flexibility of separate current-mode/voltage-mode operation for the two channels, and is optimized for high efficiency and low dropout across the full current range with a very small solution footprint. The LTC3624IDD#PBF also offers a variety of protection and diagnostic features including an adjustable power-good threshold, current and temperature sensing, short-circuit protection, open-load detect, and overcurrent protection.

The LTC3624IDD#PBF working principle is based on the dual-channel switching regulator topology. Its two independently controlled switch-mode voltage regulators integrate synchronous rectifiers, programmable current limits, programmable frequency range, power-good indicator, and a variety of protection and diagnostic features. The LTC3624IDD#PBF is designed to handle the extreme voltage requirements in mobile communication applications while delivering the high efficiency and low noise characteristics of synchronous buck regulators.

The LTC3624IDD#PBF DC/DC switching regulator provides a high-performance solution for high-current demands in mobile communication applications. The controller is suitable for applications requiring minimum on-state resistance and tight output voltage regulation. It is designed for use in custom power supplies and can be adapted for any use, from simple voltage step-down to multiple construction. It is designed to provide excellent current delivery, voltage regulation, and low-noise operation across its full range of operation.

This particular DC/DC switching regulator offers outstanding performance for applications that demand high efficiency and low dropout in a small package size. Its multiple control and protection features are designed to provide current, temperature, and short-circuit protection. The LTC3624IDD#PBF offers a wide operating frequency range and low quiescent current, which can reduce system power consumption. With this controller, multiple voltage conversions are possible, adjusting the output voltage to match the required application while maintaining the high current-delivery ratings.

The LTC3624IDD#PBF provides a flexible solution for designers to optimize their power system in terms of efficiency, smallest solution footprints, lowest cost, and highest performance. By integrating two synchronous buck regulators into a single package, the device can reduce the component cost, number of layers, and overall layout time while delivering excellent power delivery performance and industry-leading current capabilities. With its wide operating range, programmable functions, and integrated control, this controller is ideal for a variety of applications such as high-current notebook power supplies and multi-processor systems.

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