MP1531DM-LF-Z

Overview

The MP1531DM-LF-Z is a switching regulator from Monolithic Power Systems designed for TFT LCD bias applications. It integrates a triple output step-up converter with linear regulators in a TSSOP-16 package. The device operates within an input voltage range of 2.7 V to 5.5 V and provides three outputs with a maximum output current of 500 mA. The boost topology supports output voltages between 2.7 V and 22 V. It functions at a switching frequency of 250 kHz and draws a static current of 1.2 mA. The component is rated for operating temperatures from -40 °C to +85 °C.

Feature Summary

• Integrates a triple output step-up converter with linear regulators for complete DC/DC solutions
• Designed specifically to power TFT LCD panels from regulated 3.3V or 5V sources
• Features internal power sequencing and soft-start capabilities to prevent input overload during startup

Applications

• TFT LCD panel biasing
• Portable DVD players
• Tablets
• Automotive navigation displays

Procurement Notes

Verify the specific suffix against official manufacturer documentation to confirm pinout compatibility and thermal performance characteristics. Ensure the procurement channel provides valid traceability records for RoHS compliance. Cross-reference the datasheet revision date to confirm support for the required operating temperature range and electrical specifications before finalizing acquisition.

Selection Notes

Select this component when designing power systems for TFT LCDs requiring multiple bias rails from a single low-voltage source. The integrated solution reduces external component count compared to discrete designs. Consider the TSSOP-16 package constraints for thermal management in compact enclosures. Verify that the 250 kHz switching frequency aligns with electromagnetic interference requirements for the target application environment.

Part Context

This part belongs to the MP1531 series, which focuses on power management for display technologies. It serves as a specialized alternative to general-purpose boost converters by providing integrated linear regulation alongside the step-up function. The design targets portable electronics where space efficiency and simplified bill of materials are critical for manufacturing scalability.

Replacement Considerations

MP1530DM-LF-Z is a documented substitute within the same family offering similar triple output functionality.