Monolithic Power Systems MPQ3425 | Demoboard EVQ3425-L-00A

Description

The MPQ3425 is a current mode step-up converter with a 3.5A, 90mΩ internal switch to provide a highly efficient regulator with fast response. The MPQ3425 operates at a programmed fix frequency up to 2MHz allowing for easy filtering and low noise. An external compensation pin gives the user flexibility in setting loop dynamics, which allows the use of small, low-ESR ceramic output capacitors. Softstart results in small inrush current and can be programmed with an external capacitor. The MPQ3425 includes under-voltage lockout, current limiting and thermal overload protection to prevent damage in the event of an output overload. The MPQ3425 is available in a low profile 14-pin QFN package with exposed pad

Features

• Guaranteed Industrial and Automotive Temp Range Limits
• 3.5A, 90mΩ, 55V Power MOSFET
• Uses Small Capacitors and Inductors
• Wide Input Range: 3.1V to 22V
• Output Voltage up to 55V
• Programmable FSW: 300kHz - 2MHz
• Programmable Under-Voltage Lockout (UVLO), Soft-Start, UVLO Hysteresis
• Micropower Shutdown <1μA
• Thermal Shutdown
• Available in a QFN-14 (3mmx4mm) Package

Typical applications

• •Microphones and Tuner Bias
• •Automotive
• •Telecom and Power Supplies

More information

• IC product information