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reference designMPQ4324GLE-4000-AEC1 | Demoboard EVQ4324-L-4000-00A

Monolithic Power Systems MPQ4324GLE-4000-AEC1 | Demoboard EVQ4324-L-4000-00A

36V, 4A Peak, Low Quiescent Current, Synchronous Step-Down Converter Evaluation Board, AEC-Q100 Qualified

Overview

TopologyBuck Converter
Input voltage3.3-36 V
Output 15 V / 4 A
IC revision1.0

Description

The EVQ4324-L-4000-00A evaluation board is designed to demonstrate the capabilities of the MPQ4324GLE-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 MPQ4324GLE-4000-AEC1 provides up to 4A peak of highly efficient output current (IOUT) with peak current mode control. The wide 3.3V to 36V input voltage (VIN) range and 42V load dump tolerance accommodate a variety of step-down applications in automotive input environments. A 1μA shutdown mode quiescent current (IQ) allows the device to be used in battery-powered applications.High power conversion efficiency across the entire load range is achieved by scaling down the switching frequency (fSW) under light-load conditions 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 provide support for automotive cold-crank conditions.The EVQ4324-L-4000-00A is fully assembled and tested. The MPQ4324GLE-4000-AEC1 is available in a QFN-12 (3mmx4mm) package with wettable flanks. It is available in AEC-Q100 Grade 1.

Features

  • Designed for Automotive Applications
  • Survives 42V Load Dump
  • Continuous Operation Up to 36V
  • Supports Cold Crank Down to 3.1V
  • Low-Dropout (LDO) Mode with Soft Recovery
  • 0.5A to 3A Continuous and 4A Peak Output Current (IOUT) Version in Pin Compatible Family
  • 65ns Minimum On Time and 50ns Minimum Off Time
  • Available in AEC-Q100 Grade 1
  • Increases Battery Life
  • 1μA Shutdown Supply Current
  • 20μA Sleep Mode Quiescent Current (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
  • Configurable 350kHz to 2.5MHz Switching Frequency (fSW)
  • Frequency Spread Spectrum (FSS) Modulation
  • Symmetric VIN Pinout
  • MeshConnect™ Flip-Chip Package
  • Available Packages with Wettable Flanks
  • QFN-12 (2mmx3mm)
  • QFN-12 (3mmx4mm)
  • QFN-14 (2.5mmx3.5mm)
  • Additional Features
  • Power Good (PG) Output
  • Over-Current Protection (OCP) with Hiccup Mode
  • Fixed Output Voltage (VOUT) Options (1): 1V, 1.8V, 2.5V, 3.0V, 3.3V, 3.8V, 5V

Typical applications

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

More information

Products

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C
Tol. C
VR(V (DC))
Size
Operating Temperature
Q
RISO
Ceramic Type
L(mm)
W(mm)
H(mm)
Fl(mm)
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Z @ 100 MHz(Ω)
Zmax(Ω)
Test Condition Zmax
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RDC max.(Ω)
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885012006051
SPECWCAP-CSGP MLCCs 50 V(DC), 10 pF, ±5%
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 50 V(DC)
Capacitance10 pF
Capacitance±5% 
Rated Voltage50 V (DC)
Size0603 
Operating Temperature -55 °C up to +125 °C
Q-Factor600 
Insulation Resistance10 GΩ
Ceramic TypeNP0 Class I 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
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742792063
SPECWE-CBF SMT EMI Suppression Ferrite Bead, –, –
Simu­lation
Availability
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Downloads9 files

EDA models: Components ZIP

CAD files ZIP

Electric models ZIP

Download all 9 files as zip archive
ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-CBF SMT EMI Suppression Ferrite Bead
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Size0805 
Operating Temperature -55 °C up to +125 °C
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Length2 mm
Width1.2 mm
Height0.9 mm
Pad Dimension0.5 mm
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Impedance @ 100 MHz60 Ω
Maximum Impedance90 Ω
Maximum Impedance500 MHz 
Rated Current 23000 mA
DC Resistance0.025 Ω
TypeHigh Current 
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