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Monolithic Power Systems MPQ4321 | Demoboard EVQ4321-D-00A
36V, 1A, Low-IQ, Synchronous Step-Down Converter in a QFN-12 Package Evaluation Board, AEC-Q100 Qualified
Overview
| Topology | Buck Converter |
| Input voltage | 3.3-36 V |
| Output 1 | 5 V / 1 A |
| IC revision | 1.0 |
Description
The EVQ4321-D-00A evaluation board is designed to demonstrate the capabilities of the MPQ4321, a 350kHz to 2.5MHz configurablefrequency, synchronous, step-down switching regulator with integrated, internal high-side MOSFETs (HS-FETs) and low-side MOSFETs (LS-FETs).
Features
- Designed for Automotive Applications:
- Survives 42V Load Dump
- Supports 3.1V Cold Crank
- Low-Dropout Mode
- 1A of Continuous Output Current
- Continuous Operation up to 36V
- Operating Junction Temperature: -40°C to +150°C
- 65ns Minimum On Time and 50ns Minimum Off Time
- Increases Battery Life:
- 1μA Shutdown Supply Current
- 20μA Sleep Mode Quiescent Current
- Advanced Asynchronous Mode (AAM) Increases Efficiency under Light Loads
- High Performance for Improved Thermal Performance:
- Integrated 70mΩ High-Side and 50mΩ Low-Side MOSFETs
- Optimized for EMC/EMI:
- Frequency Spread Spectrum Modulation
- Symmetric VIN Pinout
- CISPR25 Class 5 Compliant
- 350kHz to 2.5MHz Configurable Switching Frequency
- MeshConnect™ Flip-Chip Package
- Additional Features:
- Power Good Output
- Hiccup Over-Current Protection (OCP)
- Available in a QFN-12 (2mmx3mm) Package or a QFN-12 (3mmx4mm) Package with Wettable Flanks
- Available in AEC-Q100 Grade-1
Typical applications
- Automotive Infotainment, Automotive Clusters, Advanced Driver Assistance Systems
- Industrial Power Systems