MP2122AGJ-P

Voltage Regulators - DC DC Switching Regulators Overview

The MP2122AGJ-P is a dual synchronous buck regulator from Monolithic Power Systems, designed for portable applications. It operates with an input voltage range of 2.7 V to 6 V and provides two adjustable output channels ranging from 608 mV to 5.5 V. Each channel delivers up to 2 A of output current. The device features a fixed 1 MHz switching frequency and a low quiescent current of 45 µA. Integrated power MOSFETs include 80 mΩ high-side and 35 mΩ low-side switches. It utilizes peak current mode control with internal compensation and is housed in a TSOT-23-8 package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Dual-channel architecture providing independent 2 A outputs within a compact surface-mount package
• Integrated power stage eliminates external Schottky diodes through built-in synchronous rectification
• Internal compensation design reduces the requirement for external components during implementation
• Comprehensive protection suite includes hiccup-mode short-circuit protection, cycle-by-cycle overcurrent limiting, and thermal shutdown

Voltage Regulators - DC DC Switching Regulators Applications

• Single-cell lithium-ion battery powered portable devices
• Point-of-load regulation for embedded systems
• Power distribution networks requiring dual voltage rails

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify component authenticity by cross-referencing the manufacturer part number and date code against official Monolithic Power Systems documentation. Confirm that the specific suffix matches the requested package type and lead finish. Ensure compliance with RoHS standards as indicated in the product specifications before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing circuits requiring dual isolated or non-isolated DC-DC conversion from a single cell battery source. The integrated compensation simplifies layout compared to externally compensated alternatives. Consider the 1 MHz frequency for balancing efficiency and passive component size requirements in space-constrained portable electronics.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the MP2122 family of dual synchronous step-down converters. It shares core topology and performance characteristics with variants such as the MP2122GJ-P, though specific suffixes may denote differences in packaging, tape-and-reel specifications, or regional manufacturing origins within the same functional series.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. The MP2122GJ-P is listed as a related variant within the same family but carries a Not Recommended For New Designs (NRND) status.