MP2148GQD-Z

Voltage Regulators - DC DC Switching Regulators Overview

The MP2148GQD-Z is a synchronous step-down converter from Monolithic Power Systems, housed in a compact QFN-6 (1.0mm x 1.5mm) package. It operates with an input voltage range of 2.3V to 5.5V and delivers up to 1A of continuous output current. The device features a fixed switching frequency of 2.2MHz and ultra-low quiescent current of 11µA. Output voltage is adjustable from 0.6V to 3.3V. It supports operation across a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Utilizes constant on-time control for fast transient response and stable loop performance.
• Integrates internal power MOSFETs with low on-resistance to maximize efficiency.
• Includes comprehensive protection mechanisms such as cycle-by-cycle current limit and thermal shutdown.
• Features output discharge capability to safely dissipate stored energy when disabled.

Voltage Regulators - DC DC Switching Regulators Applications

• Portable and mobile consumer electronics
• Wireless power systems
• Digital signal processor (DSP) power supplies
• Low-power embedded systems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official MPS documentation to confirm output configuration. The 'Z' suffix indicates RoHS compliance. Confirm that the selected variant matches the required fixed or adjustable output voltage before integration. Ensure the QFN-6 footprint aligns with the PCB layout guidelines provided in the datasheet to maintain thermal and electrical performance standards.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for applications requiring minimal board space due to its ultra-small QFN-6 package. It is suitable for designs needing high efficiency at light loads thanks to the 11µA quiescent current. Choose this part over higher-current alternatives if the load requirement remains below 1A. Verify that the 2.2MHz switching frequency fits within the electromagnetic interference constraints of the target system.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the MP2148 series of synchronous buck converters. It is designed for high-efficiency power management in space-constrained environments. The series offers various output voltage options through different suffixes, allowing designers to select pre-set voltages or adjustable configurations while maintaining consistent performance characteristics and package dimensions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

MP2148GQD-18-Z provides a fixed 1.8V output option within the same series. MP2148GQD-12-Z offers a fixed 1.2V output. These variants share identical pinouts and electrical specifications except for the fixed output voltage setting.