Monolithic Power Systems (MPS) MPQ4322 Synchronous Step-Down Converters

Monolithic Power Systems (MPS) MPQ4322 Synchronous Step-Down Converters feature a configurable frequency range from 350kHz to 2.5MHz. The MPS MPQ4322 features integrated internal power MOSFETs (HS-FET and LS-FET), providing up to 2A of efficient output current (I_OUT) with peak current mode control. This converter is suitable for a wide input voltage range of 3.3V to 36V, making it ideal for automotive applications. It also has a 42V load dump tolerance and a low 1μA shutdown current (ISD), making it suitable for battery-powered devices.

Features

Increases battery life
- 1μA shutdown supply current (ISD)
- 20μA sleep mode quiescent current (I_Q)
- Advanced Asynchronous Modulation (AAM) mode increases efficiency under light loads
Optimized for EMC/EMI
- Frequency Spread Spectrum (FSS) modulation
- Symmetric V_IN pinout
- CISPR25 Class 5 compliant
- 350kHz to 2.5MHz configurable switching frequency (fSW)
- MeshConnect™ flip-chip package

High performance for improved thermals
- Integrated 70mΩ/50mΩ MOSFETs
- 65ns Minimum On Time (tON_MIN)
- 50ns Minimum Off Time (tOFF_MIN)
Additional features
- Power Good (PG) output
- Low-dropout (LDO) mode
- 1V, 1.8V, 2.5V, 3V, 3.3V, 3.8V, 5V fixed output options
- Hiccup Over-Current Protection (OCP)
- Available in a QFN-12 (2mm x 3mm) package or a QFN-12 (3mm x 4mm) package with wettable flanks
- Available in AEC-Q100 Grade 1

Applications

Automotive infotainment
Automotive clusters

Advanced Driver-Assistance Systems (ADAS)
Industrial power systems

TYPICAL APPLICATION

Application Circuit Diagram - Monolithic Power Systems (MPS) MPQ4322 Synchronous Step-Down Converters

Monolithic Power Systems (MPS) MPQ4322 Synchronous Step-Down Converters

Features

Applications

TYPICAL APPLICATION

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