MP2153GQFU-33-Z

Voltage Regulators - DC DC Switching Regulators Overview

The MP2153GQFU-33-Z is a monolithic synchronous step-down converter manufactured by Monolithic Power Systems. It operates within an input voltage range of 2.5 V to 5.5 V and delivers a fixed output voltage of 3.3 V at up to 3 A continuous current. The device features a low quiescent current of 25 µA and a switching frequency of 1.1 MHz. It utilizes a UTQFN-6 package with dimensions of 1.2 mm x 1.6 mm. Internal power MOSFETs have on-resistances of 65 mΩ and 35 mΩ. The component supports operation temperatures from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates internal power MOSFETs for high efficiency and minimal external component count.
• Employs constant on-time control mode to ensure rapid transient response and loop stability.
• Includes comprehensive protection mechanisms such as over-temperature, short-circuit, and over-voltage protection.
• Features an output discharge function to safely manage load conditions during shutdown.

Voltage Regulators - DC DC Switching Regulators Applications

• Solid-state drives
• Portable electronic devices
• Small power low-voltage systems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix Z indicates RoHS compliance and halogen-free status according to manufacturer documentation. Confirm the UTQFN-6 package footprint matches your PCB layout requirements. Ensure input capacitors are rated for the maximum operating voltage of 5.5 V. Check thermal performance under full 3 A load conditions given the small package size.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this part when a fixed 3.3 V output is required from a 2.5 V to 5.5 V source. It is suitable for space-constrained designs due to the ultra-small UTQFN-6 package. Consider the 1.1 MHz frequency for balancing efficiency and passive component size. Verify that the 25 µA quiescent current meets standby power requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the MP2153 series of synchronous buck converters. The GQFU suffix denotes the UTQFN-6 package variant, distinct from the GTF SOT-563 version. The 33 suffix specifies the fixed 3.3 V output voltage, differentiating it from adjustable or other fixed voltage variants in the same family.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

MP2153GQFU-P is the tape-and-reel packaging alternative to the cut-tape Z suffix. MP2153GTF-33-Z offers identical electrical specifications but uses the SOT-563 package instead of UTQFN-6. Cross-package replacements require PCB layout modifications.