LTC3864MPDE#TRPBF

DC DC Switching Controllers Overview

The LTC3864MPDE#TRPBF is a high-voltage step-down DC/DC controller manufactured by Analog Devices Inc. It operates with an input voltage range of 3.5V to 60V and supports a maximum duty cycle of 100%. The device regulates output voltages from 0.8V up to the input voltage level. It features a peak current mode architecture with a programmable switching frequency ranging from 50kHz to 850kHz, or synchronization to an external clock between 75kHz and 750kHz. The quiescent current in standby mode is 40µA. It provides dual outputs with load regulation of 0.01%. The component is housed in a QFN-28 package and is rated for operation temperatures from -55°C to +150°C.

DC DC Switching Controllers Feature Summary

• Supports 100% duty cycle operation for direct battery connection applications
• Integrates Burst Mode operation for low noise and high efficiency at light loads
• Includes comprehensive protection features such as overvoltage, overcurrent, and short circuit protection
• Features programmable soft start and power good signal output

DC DC Switching Controllers Applications

• 12V or 24V automotive systems
• Heavy equipment power management
• Industrial control systems
• Robotics power distribution
• Telecommunications infrastructure

DC DC Switching Controllers Procurement Notes

Verify the specific MP suffix indicates military-grade temperature rating and testing requirements against your design specifications. Confirm availability status directly with authorized distributors as supply constraints may apply. Ensure the QFN-28 package thermal performance meets your PCB layout capabilities for the required operating temperature range.

DC DC Switching Controllers Selection Notes

Select this controller when a wide input voltage range up to 60V is required alongside extreme temperature resilience. The dual-phase capability allows for higher current handling compared to single-phase alternatives. Consider the need for synchronous rectification drivers and external MOSFETs compatible with the peak current mode control signals.

DC DC Switching Controllers Part Context

This part belongs to the LTC3864 family of high-voltage buck controllers. The MP designation signifies a military-grade version with extended temperature coverage and rigorous testing standards compared to standard industrial variants. It shares core architectural features with other members of the series but offers enhanced reliability for harsh environments.

DC DC Switching Controllers Replacement Considerations

LTC3864IDE#PBF

DC DC Switching Controllers FAQ

What is the minimum operating temperature for the LTC3864MPDE#TRPBF?

The minimum operating junction temperature is -55°C.

Does the LTC3864 support synchronization to an external clock?

Yes, the switching frequency can be synchronized to an external clock ranging from 75kHz to 750kHz.