MP1528DK-LF-P

LED Driver IC Overview

The MP1528DK-LF-P is a boost converter LED driver IC from Monolithic Power Systems, packaged in an MSOP-8. It operates with an input voltage range of 2.7 V to 36 V and provides a single output channel capable of delivering up to 20 mA. Designed for driving up to nine series-connected white LEDs from a single lithium-ion cell, it features an integrated 0.63 Ω power MOSFET and a low 0.4 V current sense threshold. The device supports analog and digital PWM brightness control, includes overvoltage protection via the BIAS pin, and functions within a temperature range of -40 °C to +85 °C.

LED Driver IC Feature Summary

• Integrated 0.63 Ω power MOSFET for high efficiency
• Supports analog and digital PWM brightness control
• Overvoltage protection prevents damage from open loads

LED Driver IC Applications

• Single-cell lithium-ion battery powered LED lighting
• Portable electronic device backlighting
• White LED arrays requiring series connection

LED Driver IC Procurement Notes

Verify the specific suffix 'LF-P' corresponds to the lead-free RoHS compliant version in the MSOP-8 package. Confirm that the ordering information matches the manufacturer's official datasheet for the MP1528 family to ensure correct pinout and electrical specifications. Cross-reference the Mouser or MPS direct ordering details to validate the exact part designation before procurement.

LED Driver IC Selection Notes

Select this component when designing circuits driven by a single lithium-ion cell requiring up to nine series white LEDs. The MSOP-8 package is suitable for space-constrained applications. Ensure the design accounts for the 20 mA output current limit and utilizes external components for setting the LED current and frequency as specified in the technical documentation.

LED Driver IC Part Context

This part belongs to the MP1528 series of step-up converters specifically engineered for LED illumination. The DK suffix indicates the MSOP-8 package variant, distinguishing it from QFN or other package options within the same functional family. It shares core architecture with other MP1528 models but differs in physical footprint and thermal characteristics.

LED Driver IC Replacement Considerations

Direct substitutes include MP1528DQ-LF-P (QFN-6 package) and MP1528DG-LF (QFN-8 package). These variants offer identical electrical performance but require PCB layout adjustments due to different pinouts and dimensions.