LTC3807MPUDC#PBF

DC DC Switching Controllers Overview

The LTC3807MPUDC#PBF is a low quiescent current synchronous step-down DC/DC controller manufactured by Analog Devices Inc. It operates within an input voltage range of 4V to 38V and supports output voltages from 0.8V to 24V. The device utilizes a constant frequency current mode architecture with a programmable switching frequency ranging from 50kHz to 900kHz. Key electrical parameters include a no-load static current of 50µA, a shutdown current of 14µA, and a maximum duty cycle of 99%. It features a precise 0.8V reference voltage and is housed in a 20-pin QFN package measuring 3mm x 4mm.

DC DC Switching Controllers Feature Summary

• Synchronous buck controller designed for driving full N-channel power MOSFET stages
• OPTI-LOOP compensation optimizes transient response across wide output capacitance and ESR ranges
• Selectable light load operation modes including Burst Mode, pulse skipping, or continuous conduction
• Integrated soft start and tracking capabilities via the TRACK/SS pin

DC DC Switching Controllers Applications

• Automotive always-on systems
• Battery-powered digital devices
• Distributed DC power systems

DC DC Switching Controllers Procurement Notes

Verify the specific MPUDC suffix against official Analog Devices documentation to confirm exact thermal pad configuration and marking details. Ensure compatibility with the intended PCB footprint and thermal relief requirements for the 20-QFN package. Cross-reference the datasheet revision date to confirm material compliance and manufacturing site information prior to final procurement.

DC DC Switching Controllers Selection Notes

Select this component when designing systems requiring wide input voltage flexibility up to 38V and high efficiency under varying load conditions. The low quiescent current makes it suitable for battery-operated applications where standby power consumption is critical. Consider the external MOSFET selection based on the controller's drive capability and the required output current specifications.

DC DC Switching Controllers Part Context

This part belongs to the LTC3807 family of synchronous step-down controllers. It shares architectural similarities with other Linear Technology regulators but is distinguished by its specific 24V output capability and 20-pin QFN packaging. The series is characterized by its ability to maintain stability with diverse output capacitor types.

DC DC Switching Controllers Replacement Considerations

LTC3807IFE#PBF

DC DC Switching Controllers FAQ

What is the minimum operating temperature?

-40°C

Does the device support clock synchronization?

No, the LTC3807 does not support clock synchronization.