Monolithic Power Systems MPQ3452 | Demoboard EVQ3452-L-00A

Description

The MPQ3452 is a current control mode, step-up converter with a 3.5A, 90mΩ internal MOSFET for fast transient response. The device operates from a 3.1V to 22V input voltage (VIN) range, and can generate up to 22V of output voltage (VOUT).The MPQ3452 features a configurable switching frequency (fSW) of up to 2MHz for easy filtering and low noise. External compensation allows the loop dynamics to be flexibly set via small, low-ESR ceramic output capacitors. Soft start (SS) provides a small inrush current and can be configured via an external capacitor.Full protection features include under-voltage lockout (UVLO) protection, current limiting, and thermal shutdown. The MPQ3452 is available in a low-profile QFN-14 (3mmx4mm) package with an exposed pad.

Features

• Wide 3V to 22V Input Voltage (VIN) Range
• Up to 22V Output Voltage (VOUT)
• Internal 3.5A, 90mΩ Power MOSFET
• 300kHz to 2MHz Configurable SwitchingFrequency (fSW)
• Uses Capacitors and Inductors with SmallerPackage Sizes
• Configurable Under-Voltage Lockout(UVLO) Protection
• Configurable Soft Start (SS)
• Micropower Shutdown: IQ < 1μA
• Thermal Shutdown
• Available in an SOIC-8 Package or a QFN-14 (3mmx4mm) Package with an ExposedPad

Typical applications

• Audio Microphones, Tuner Bias
• Telecom Power Supplies
• Automotive Battery Chargers

More information

• Datasheet
• IC product information