LTC3612HFE#TRPBF

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The LTC3612HFE#TRPBF is a high-efficiency, synchronous DC/DC buck converter that operates from 3 V to 5.5 V and has a programmable frequency of 100 kHz to 750 kHz. It features a unique architecture that includes both reverse current protection, allowing it to respond quickly to changing load conditions without compromising system stability. With its high-frequency switching capability and rugged voltage regulation, this energy efficient, space saving device supports a wide variety of applications, such as point of load regulators, automotive and industrial systems, instrumentation, datacom, and telecom.

The LTC3612HFE#TRPBF utilizes a two-phase interleaving configuration to reduce the output ripple and minimize size. Each phase has its own internal controller, power MOSFET, and loop compensation components. Also, with its wide input range and small inductor size, the converter is well suited for space-constrained applications. Additionally, the device has an integrated high-side and low-side MOSFET driver, providing synchronous operation with low voltage stress. Its 5-bit VID (Voltage Identification Digital) that provides 0.5 V accuracy, enables easy voltage scaling.

Features:
• 2-Phase, 2-Switch Controller and Driver
• High-Efficiency Synchronous DC/DC Buck Regulator
• Fixed Frequency, Step-Down Operation
• Flexible Input Voltage Range: 3 V to 5.5 V
• Programmable Frequency: 100 kHz to 750 kHz
• Current Mode Control
• Voltage Mode Control
• 5-Bit VID, 0.5 V Accuracy
• Internal Power MOSFETs
• Optimized Loop Compensation
• Reverse Current Protection
• Overvoltage Protection
• Programmable Soft-Start
• Hiccup Mode Over-Current Protection

Application Field:
The LTC3612HFE#TRPBF is an ideal solution for efficient and flexible point of load regulators in automotive and industrial power control applications, instrumentation systems, datacom and telecom. This low-EMI DC/DC buck converter can be used for output voltage regulation of 5 V, 12 V, and 24 V, and also suits a wide range of other general-purpose applications, such as motion controllers, process control, switched-mode power supplies, embedded systems, and consumer electronics.

Working Principle:
The converter works by switching the internal power MOSFETs at the predetermined frequency — this is modulated based on the input voltage and output demand to provide the most efficient regulation. In doing so, the power MOSFETs convert the input voltage to the regulated output voltage. The current mode control uses an internal voltage monitor to provide fast and accurate line and load regulation. This current mode control also provides adjustable overcurrent protection. Additionally, the LTC3612HFE#TRPBF circuit includes overvoltage protection, reverse current protection, and hiccup mode overcurrent protection.

The LTC3612HFE#TRPBF utilizes a two-phase interleaving configuration to reduce output noise and ripple and minimize size. Each phase has its own internal controller, power MOSFET, and loop compensation components. With wide input range and small solution size, the converter is well suited for space-constrained applications. Additionally, the device has an integrated high-side and low-side MOSFET driver, providing synchronous operation with low voltage stress. Its 5-bit VID (Voltage Identification Digital) that provides 0.5 V accuracy, enables easy voltage scaling.

In general, the LTC3612HFE#TRPBF is a versatile, high-efficiency DC/DC buck converter with a wide range of configurability options. With its small package size, excellent thermal performance and full protection features, it is well suited for high-power applications, efficiently providing the required output power for your system.

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