MP1530DQ-LF-Z

Overview

The MP1530DQ-LF-Z is a triple output step-up converter with linear regulators designed for TFT LCD bias applications. It operates from an input voltage range of 2.7 V to 5.5 V and provides three outputs: a step-up converter up to 22 V, a positive 20 mA linear regulator, and a negative 20 mA linear regulator. The device features a 2.8 A switch current limit, 1.4 MHz fixed switching frequency, and internal power-on sequencing. It is housed in a 16-pin QFN (3mm x 3mm) package.

Feature Summary

• Integrates a triple output step-up converter with positive and negative linear regulators for complete DC/DC solutions
• Includes internal power-on sequencing and adjustable soft-start/fault timer capabilities
• Features cycle-by-cycle over-current protection and under-voltage lockout mechanisms

Applications

• TFT LCD Displays
• Portable DVD Players
• Tablet PCs
• Car Navigation Displays

Procurement Notes

Verify the specific suffix DQ corresponds to the 16-pin QFN package configuration as indicated by datasheet documentation. Confirm RoHS compliance status through official manufacturer declarations. Check for obsolescence notices or recommended new design alternatives prior to final procurement decisions.

Selection Notes

Select this component when a compact solution for TFT LCD biasing is required from a 3.3V or 5V supply. The integrated linear regulators simplify design by eliminating external charge pumps for negative rail generation. Ensure input voltage stays within the 2.7V to 5.5V operating range for optimal performance.

Part Context

This part belongs to the MP1530 series from Monolithic Power Systems, specifically engineered for portable electronics requiring multiple bias voltages. The DQ suffix denotes the QFN package variant, distinguishing it from TSSOP options within the same functional family.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.