LTM4673 is a high-performance DC-DC converter. The function description is as follows23:
Powerful Channel Management: It is a 4-channel output μModule regulator with 2 channels of 12A and 2 channels of 5A, integrating a 4-channel power system manager. It is used for sequencing, servoing, margining, monitoring, managing faults, providing telemetry and creating fault logs.
Wide Input Voltage Range: Operates in the input voltage range of 4.5V to 15V, which can adapt to different power supply environments and is suitable for various applications that require different input voltages.
Flexible Output Voltage: The output voltage range of the 12A channel is 0.6V to 3.3V, and that of the 5A channel is 0.6V to 5.5V. It can provide multiple voltage levels to meet the power supply needs of different loads.
Precise Serial Interface Control: It has a two-wire serial interface, which can precisely margin, trim and control the programmable power-on and shutdown sequence of the output, enabling flexible configuration and management of the power supply system.
Comprehensive Monitoring Function: The internal 16-bit ADC can monitor the input and all four output voltages, currents and temperatures in real time, providing accurate data for the operation status of the power supply system and facilitating fault diagnosis and performance optimization.
Programmable Fault Protection: The fault of overcurrent and undercurrent, voltage and temperature threshold limits of the four output channels, as well as input overvoltage and undervoltage can be programmed to improve the reliability and stability of the power supply system and protect the safety of the load and circuit.
High Switching Frequency: The switching frequency is 1MHz, which can improve the efficiency of the power conversion and reduce the size of passive components, making the power module more compact.
Good Thermal Stability: It can work in the temperature range of -40°C to +125°C, with good thermal stability, ensuring the normal operation of the device in different temperature environments.
Compact Package: It is packaged in a 16mm×16mm×4.72mm BGA, which has the advantages of small volume and high integration, saving PCB space and being convenient for system integration.
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