MP2351DQ-LF-Z

Voltage Regulators - DC DC Switching Regulators Overview

The MP2351DQ-LF-Z is a non-synchronous buck switching regulator from Monolithic Power Systems. It delivers a continuous output current of 1.5A with an input voltage range of 4.75V to 23V. The device operates at a fixed switching frequency of 1.45MHz and features adjustable output voltages from 0.92V to 16V. Packaged in a QFN-10 footprint, it supports surface-mount installation and functions within a temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-side N-channel MOSFET for efficient step-down conversion without requiring external synchronous rectification.
• Incorporates cycle-by-cycle current limit protection to safeguard the internal power switch during overload conditions.
• Includes thermal shutdown circuitry that automatically disables the output when excessive junction temperatures are detected.

Voltage Regulators - DC DC Switching Regulators Applications

• Portable consumer electronics requiring compact power solutions
• Embedded systems utilizing single-cell lithium-ion battery inputs
• General-purpose point-of-load regulation for digital logic

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm RoHS compliance status via official datasheets. Check for obsolete or NRND status before integration. Ensure package markings match manufacturer specifications. Validate electrical parameters against latest public documentation.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Evaluate input voltage requirements against the specified 4.75V to 23V range. Consider thermal management needs due to non-synchronous topology losses. Assess inductor selection based on the 1.45MHz switching frequency. Verify output voltage adjustability meets load requirements. Review current handling capabilities for peak load scenarios.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the MPS MP2351 series of monolithic switching regulators. It serves as a compact power management solution for applications demanding high efficiency in small form factors. The series targets portable devices and embedded systems where board space is limited.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult official manufacturer resources for cross-reference information.