MP2116DQ-LF-Z

Overview

The MP2116DQ-LF-Z is a Monolithic Power Systems integrated circuit combining a 2A synchronous step-down converter and a 500mA low-dropout regulator. It operates with an input voltage range of 1V to 6V, providing adjustable output voltages from 600mV to 6V for the buck channel. The device utilizes a fixed switching frequency of 1.25MHz and functions within a temperature range of -40°C to +85°C. Packaged in a QFN-10 format, it supports surface-mount installation.

Feature Summary

• Integrates a high-current synchronous buck converter with an auxiliary LDO in a single compact package
• Supports 100% duty cycle operation for minimal voltage drop applications
• Features internal compensation and power MOSFETs for simplified design

Applications

• Portable consumer electronics requiring dual voltage rails
• Battery-powered devices with limited board space
• Embedded systems needing efficient power management

Procurement Notes

Verify the specific suffix against official MPS documentation to confirm pinout and electrical characteristics. Confirm RoHS compliance status through current manufacturer declarations. Check for end-of-life notifications as availability may be restricted. Ensure the QFN-10 footprint matches your PCB layout requirements before finalizing procurement orders.

Selection Notes

Select this component when a combined buck and LDO solution is required for space-constrained designs. Evaluate the 2A buck current capability against peak load demands. Consider the 1.25MHz frequency for inductor size trade-offs. Verify that the 6V maximum input voltage aligns with your system's supply rails.

Part Context

This part belongs to the MP2116 series of mixed-signal power management ICs. It is designed for applications requiring efficient DC-DC conversion alongside linear regulation. The series targets portable electronics where power density and efficiency are critical constraints.

Replacement Considerations

Consult official MPS substitution guides for verified alternatives. Generic equivalents may lack identical pinouts or thermal performance.