MP2378DS-LF

Voltage Regulators - DC DC Switching Regulators Overview

The MP2378DS-LF is a synchronous step-down switching voltage regulator manufactured by Monolithic Power Systems. It operates with an input voltage range of 4.75 V to 30 V and delivers up to 2 A of output current. The device integrates internal power switches and supports a fixed switching frequency of 385 kHz. It provides an adjustable output voltage from 0.923 V to the input rail, limited by internal circuitry. The component functions within a junction temperature range of -40°C to +125°C and utilizes an 8-pin SOIC package for surface-mount installation.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates high-side and low-side N-channel MOSFETs for efficient synchronous rectification
• Includes programmable soft-start to limit inrush current during startup
• Features comprehensive protection mechanisms including over-current, over-voltage, and thermal shutdown

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Power supplies for industrial equipment
• Adapters and chargers

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix designation, as the MP2378DS-LF-Z variant is documented as active while the base MP2378DS-LF may be discontinued or have limited availability. Confirm RoHS compliance status and moisture sensitivity level requirements before integration into manufacturing processes. Ensure the supplier provides valid traceability documentation for quality assurance purposes.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution is required for converting higher bus voltages down to lower logic or peripheral levels. The 385 kHz frequency allows for smaller external inductors and capacitors compared to lower-frequency alternatives. Verify that the load current does not exceed the 2 A continuous rating under maximum operating temperature conditions to maintain reliability.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the MP23xx series of synchronous buck converters from Monolithic Power Systems. It shares architectural similarities with the MP2358 and MP2309 but offers a wider input voltage range extending up to 30 V. The series is designed for applications requiring high efficiency and small footprint in power management designs.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The MP2378DS-LF-Z is a parameter-equivalent alternative with identical electrical specifications. Verify pin compatibility and thermal performance characteristics when substituting between these variants.