Monolithic Power Systems MP3426

Description

The MP3426 is a current-mode step-up converter with a 6A, 90mΩinternal switch that provides a highly efficient regulator with a fast response. The MP3426 features programmable frequency of up to 2MHz that allows for easy filtering and reduces noise. An external compensation pin gives the user flexibility in setting loop dynamics, and uses small, low-ESR, ceramic output capacitors. Soft-start results in a small inrush current and can be programmed with an external capacitor. The MP3426 operates from an input voltage as low as 3.2V and can generate up to a 35V output.The MP3426’s features include under-voltage lockout, current limiting, and thermal overload protection. The MP3426 is available in a lowprofile 14-pin 3mm×4mm QFN package with an exposed pad.

Features

• 6A, 90mΩ, 45V Power MOSFET
• Uses Very Small Capacitors and Inductors
• Wide Input Range: 3.2V to 22V
• Output Voltage as High as 35V
• Programmable fsw: 300kHz to 2MHz
• Programmable UVLO, Soft-Start, UVLO Hysteresis
• Micropower Shutdown <1μA
• Thermal Shutdown 160°C
• Available in 14-Pin 3mm×4mm QFNPackage

Typical applications

• Telecom – Power Supply
• Automotive
• Audio - Microphone and Tuner Bias

More information

• Datasheet
• IC product information