MP1522ET-LF-Z

Voltage Regulators - DC DC Switching Regulators Overview

The MP1522ET-LF-Z is a step-up converter from Monolithic Power Systems designed to generate up to 25V output voltage from an input range of 2.7V to 25V. It utilizes a current-limited variable frequency control algorithm to optimize efficiency and minimize external component size. The device features an internal 0.5Ω N-channel MOSFET switch capable of withstanding up to 28V, enabling high-efficiency operation at high output voltages. Key electrical characteristics include a shutdown current of 1µA, thermal shutdown protection, and internal current limiting.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a 0.5Ω power switch for compact design
• Supports output voltages up to 25V
• Includes thermal shutdown and internal current limit
• Features low 1µA shutdown current

Voltage Regulators - DC DC Switching Regulators Applications

• Handheld computers
• PDAs
• Cell phones
• Digital still and video cameras
• Small LCD displays

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix ET against official MPS documentation to confirm package type and tape/reel specifications. Confirm RoHS compliance status via the manufacturer's datasheet or certification documents. Check for obsolescence notices as older variants may be discontinued. Ensure the ordering part number matches the exact pinout and thermal requirements for your PCB layout.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a wide input voltage range up to 25V is required for boosting to higher LED drive voltages. The integrated switch reduces bill of materials compared to discrete solutions. Consider the variable frequency operation for noise-sensitive applications. Verify that the SOT23-5 package fits the available board space constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the MP1522 series of step-up converters manufactured by Monolithic Power Systems. It is distinct from other MPS LED drivers like the MP1529 which use different topologies. The ET suffix typically denotes a specific tape and reel packaging configuration within the MPS product line.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult MPS application notes for direct replacements.