Monolithic Power Systems MP3428A

Description

The MP3428A is a 600kHz, fixed frequency, high-efficiency, wide input range, current-mode boost converter with optional input disconnect and an input average current limit function. The input disconnect feature provides additional protection by isolating the input from the outputduring output short or shutdown. For batteryoperated applications, this feature also helps in preventing battery depletion. With aprogrammable input average current limit, the MP3428A supports a wide range of applications, including POS, Thunderbolt, Bluetooth Audio,Power Banks, and Fuel Cells. The MP3428A features a 10mΩ, 24V power switch and a synchronous gate driver for high efficiency. Anexternal compensation pin allows flexibility in setting loop dynamics and obtaining optimal transient performance at all conditions.The MP3428A includes under-voltage lockout, switching current limiting, and thermal shutdown to prevent damage in the event of anoutput overload. The MP3428A is available in a low-profileQFN-22 (3mm x 4mm) package.

Features

• 3V to 20V Wide Input Range
• Integrated 10mΩ Low-Side Power FET
• SDR Driver for Synchronous Solution
• 19A Internal Switch Current Limit orExternal Programmable Input CurrentLimit
• Input Disconnect and Output SCP
• External Soft Start and Compensation forHigher Flexibility
• Programmable UVLO and Hysteresis
• < 1μA Shutdown Current
• Thermal Shutdown at 150°C
• Available in QFN-22 (3mm x 4mm)Package

Typical applications

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

More information

• Datasheet
• IC product information