Monolithic Power Systems MPQ3524GDE-4000-AEC1 | Demoboard EVQ3524-D-4000-00A

Description

The EVQ3524-D-4000-00A evaluation board is designed to demonstrate the capabilities of the MPQ3524GDE-4000-AEC1, a configurable-frequency (350kHz to 2.5MHz), synchronous, step-down switching regulator with integrated, internal high-side and low-side MOSFETs (HS-FET and LS-FET, respectively).The MPQ3524GDE-4000-AEC1 provides up to 4A peak of highly efficient output current (IOUT) with peak current mode control. The wide 3.3V to 20V input voltage (VIN) range accommodates a variety of step-down applications in automotive input environments, such as 12V and 5V buses and multi-cell Li-ion batteries. A 1μA shutdown mode quiescent current (IQ) allows the device to be used in battery-powered applications.High power conversion efficiency across a wide load range is achieved by scaling down the switching frequency (fSW) under light loads to reduce switching and gate driver losses.An open-drain power good (PG) signal indicates whether the output is within 94.5% to 105.5% of its nominal voltage.Frequency foldback prevents inductor current (IL) runaway during start-up. Thermal shutdown provides reliable, fault-tolerant operation. A high duty cycle and low-dropout (LDO) mode are provided for automotive cold-crank conditions.The EVQ3524-D-4000-00A is fully assembled and tested. The MPQ3524GDE-4000-AEC1 is available in a QFN-12 (2mmx3mm) package with wettable flanks, and is AEC-Q100 qualified.

Features

• Designed for Automotive Applications
• Continuous Operation Up to 20V
• Supports Cold Crank Down to 3.1V
• Low-Dropout Mode with Soft Recovery
• 0.5A to 3A Continuous Output Current (IOUT) and 4A Peak IOUT Version in Pin Compatible Family
• 65ns Minimum On Time (tON_MIN) and 50ns Minimum Off Time (tOFF_MIN)
• Available in AEC-Q100 Grade 1
• Increases Battery Life
• 1μA Shutdown Supply Current
• 20μA Sleep-Mode IQ
• Advanced Asynchronous Modulation (AAM) Mode Increases Efficiency under Light Loads
• Integrated 70mΩ High-Side MOSFET (HS-FET) and 50mΩ Low-Side MOSFET (LS-FET)
• Optimized for EMC/EMI
• CISPR 25 Class 5 Compliant
• 350kHz to 2.5MHz Configurable fSW
• Frequency Spread Spectrum (FSS) Modulation
• Symmetric VIN Pinout
• MeshConnect™ Flip-Chip Package
• Additional Features
• Power Good (PG) Output
• Over-Current Protection (OCP) with Hiccup Mode
• Fixed-Output Options (1): 1V, 1.8V, 2.5V, 3.0V, 3.3V, 3.8V, or 5V
• Available in a QFN-12 (2mmx3mm) Package with Wettable Flanks
• Functional Safety System Design Capablility
• MPSafe™ Compatible: Functional Safety Supporting Document Available

Typical applications

• Battery powered applications, Industrial Power Systems
• Automotive Infotainment, Automotive Clusters, Advanced Driver-Assistance Systems (ADAS)

More information

• Datasheet
• IC product information