MP1530DQ-LF-P

Overview

The MP1530DQ-LF-P is a triple output step-up plus linear regulator IC designed for TFT LCD bias applications. It integrates a boost converter and two linear regulators in a single package. The device operates within an input voltage range of 2.7V to 5.5V. It features a fixed switching frequency of 1.4MHz. The boost section delivers up to 22V with a 2.8A switch current limit. Two linear regulators provide positive and negative 20mA outputs. It utilizes a 16-pin QFN (3mm x 3mm) package.

Feature Summary

• Integrates a triple output topology combining a step-up converter with positive and negative linear regulators for complete TFT bias solutions.
• Features internal power-on sequencing, adjustable soft-start, and fault timer management for reliable system startup.
• Includes comprehensive protection mechanisms such as cycle-by-cycle over-current protection, under-voltage lockout, and ready flag indication.

Applications

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

Procurement Notes

Verify the specific suffix 'P' corresponds to the QFN-16 package variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the component meets the required thermal dissipation standards for the intended operating environment. Cross-reference the datasheet revision to confirm pinout compatibility with existing designs.

Selection Notes

Select this component for designs requiring a compact solution to power TFT LCD panels from regulated 3.3V or 5V supplies. The integrated topology reduces external component count compared to discrete solutions. Consider the 1.4MHz switching frequency for EMI management and filter size optimization. Evaluate the 2.8A current limit against peak load requirements during transient conditions.

Part Context

The MP1530 belongs to Monolithic Power Systems' portfolio of specialized power management ICs for display applications. This series focuses on providing efficient bias voltages for liquid crystal displays in portable electronics. The device represents a consolidated approach to managing multiple voltage rails within a small footprint.

Replacement Considerations

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