Monolithic Power Systems MP3428

Description

The MP3428 is a 600kHz fixed-frequency, highefficiency, wide input range, current-mode boost converter with optional internal or external current-sensing configuration for highintegration and high-power applications. With a current limit above 17A, the MP3428 supports a wide range of applications including POS, Thunderbolt, Bluetooth Audio, Power Banks,and Fuel Cells. The MP3428 features a 10mΩ, 24V power switch and a synchronous gate driver for high efficiency. An external compensation pin gives the user flexibility in setting loop dynamics and obtaining optimaltransient performance at all conditions.The MP3428 includes under-voltage lockout (UVLO), switching-current limiting and thermal shutdown (TSD) to prevent damage in theevent of an output overload.The MP3428 is available in a low-profile 22-pin 3mmx4mm QFN package.

Features

 3V-to-20V Wide Input Range

• Integrated 10mΩ Low-Side Power FET
• SDR Driver for Synchronous Solution

• 17A Switch-Current Limit

• Up to 97.5% Efficiency
• Optional Internal/External Current-Sensing Configuration
• External Soft-Start and Compensation forHigher Flexibility
• Programmable UVLO and Hysteresis
• < 1μA Shutdown Current
• Thermal Shutdown at 150℃
• Available in a 3x4mm QFN-22 Package

Typical applications

• Thunderbolt Interface;Notebooks and Tablets
• Power Banks;Fuel Cells
• Bluetooth Audio;Other Electronic Accessories;POS Systems

More information

• Datasheet
• IC product information