MP3378EGF-P

Overview

The MP3378EGF-P is a four-channel white LED controller and high-efficiency buck converter from Monolithic Power Systems. It operates within an input voltage range of 5 V to 24 V, supporting a maximum output current of 350 mA per channel. The device utilizes a buck topology with a fixed switching frequency of 235 kHz. Packaged in a 28-pin SOIC format, it functions reliably across an extended temperature range from -40°C to +125°C.

Feature Summary

• Integrates a high-efficiency synchronous buck converter for driving multiple white LED strings.
• Provides independent control over four separate LED output channels.
• Supports analog and pulse-width modulation (PWM) dimming methods for brightness adjustment.

Applications

• LCD panel backlighting systems
• White LED array illumination
• Portable electronic device lighting

Procurement Notes

Verify the specific suffix 'P' against official MPS documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with required thermal management solutions given the SOIC-28 footprint. Confirm that the 235 kHz switching frequency aligns with electromagnetic interference constraints in the target design environment before finalizing procurement.

Selection Notes

Select this component when designing circuits requiring a single-inductor solution for multiple white LEDs. It is suitable for applications needing precise current regulation across four channels without external MOSFETs. Consider the 24 V maximum input limit and 350 mA per-channel capability to ensure adequate headroom for the intended LED string configuration and operating conditions.

Part Context

This part belongs to the MP3378 series of LED drivers designed by Monolithic Power Systems. It serves as a specialized power management integrated circuit for display backlighting. The device consolidates control logic and power stages into a compact form factor, distinguishing itself from discrete driver solutions by offering integrated protection features and simplified external component requirements.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult manufacturer cross-reference guides for potential alternatives.