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reference designMPQ4371 | Demoboard EVQ4371-V-0000-00A

Monolithic Power Systems MPQ4371 | Demoboard EVQ4371-V-0000-00A

36V, 11A, Ultra-Low Quiescent Current, Synchronous Step-Down Converter Evaluation Board, AEC-Q100 Qualified

Overview

TopologyBuck Converter
Input voltage3.3-36 V
Output 15 V / 11 A
IC revision00

Description

The EVQ4371-V-1000-00A is an evaluation board designed to demonstrate the capabilities of the MPQ4371-1000, a synchronous, step-down switching regulator with integrated, low on resistance (RDS(ON)) high-side and low-side power MOSFETs (HS-FET and LS-FET, respectively). The device provides 11A of output current (IOUT) and employs zero-delay pulse-width modulation (ZDPTM) control, an MPS-exclusive technology that delivers extremely fast transient response while reducing the need for costly external capacitors.

Features

Designed for Automotive Transients:3.3V to 36V Input Voltage (VIN) RangeLoad Dump Up to 42VLow-Dropout (LDO) ModeAvailable in AEC-Q100 Grade 1Highly Scalable Family:6A to 11A Output Current (IOUT) Versions in Pin-Compatible FamilyMulti-Phase Capabilities Up to 8 PhasesDesigned for High-Performance and Reduced Component Overhead:Zero-Delay Pulse-Width Modulation (ZDPTM) Control for Fast Transient Response and Fewer Capacitors±1% Output AccuracyFixed or Adjustable Output Voltage (VOUT) OptionsFixed Output: 1V, 1.2V, 1.8V, 2.5V, 3.3V, 3.8V, or 5VAdjustable VOUT Up to 12VInternal Soft Start (SS)Output Discharge from SW30ns Minimum On Time

Typical applications

  • ADAS and Infotainment
  • ADAS and Infotainment

More information

Parts approved by Monolithic Power Systems

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
Z @ 100 MHz(Ω)
Zmax(Ω)
Test Condition Zmax
IR(mA)
Z @ 1 GHz(Ω)
H(mm)
Type
SamplesAvailability & Sample
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74279223560
SPECWE-MPSB EMI Multilayer Power Suppression Bead, 56 Ω, 90 Ω
Simu­lation
Availability
–
Downloads10 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-MPSB EMI Multilayer Power Suppression Bead
Impedance @ 100 MHz56 Ω
Maximum Impedance90 Ω
Maximum Impedance1000 MHz 
Rated Current10000 mA
Impedance @ 1 GHz90 Ω
Height2.28 mm
TypeHigh Current 
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Additional parts recommended by Würth Elektronik

Recommended parts are Würth Elektronik alternatives that are not formally approved for this reference design. Please verify it is suitable for your application, and contact us if you have any questions.

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT,30%(A)
RDC typ.(mΩ)
fres(MHz)
VOP(V)
Mount
RDC max.(mΩ)
SamplesAvailability & Sample
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74438367010
SPECWE-MAPI SMT Power Inductor, 1 µH, 11.85 A
Simu­lation
Availability
–
Downloads10 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-MAPI SMT Power Inductor
Inductance1 µH
Performance Rated Current11.85 A
Saturation Current @ 30%13.1 A
DC Resistance10 mΩ
Self Resonant Frequency44.5 MHz
Operating Voltage80 V
MountSMT 
DC Resistance11.5 mΩ
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74439334010
SPECWE-XHMI SMT Power Inductor, 1 µH, 14.7 A
Simu­lation
Availability
–
Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-XHMI SMT Power Inductor
Inductance1 µH
Performance Rated Current14.7 A
Saturation Current @ 30%13.4 A
DC Resistance6.3 mΩ
Self Resonant Frequency48 MHz
–
MountSMT 
DC Resistance8.4 mΩ
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744393445056
SPECWE-XHMI SMT Power Inductor, 5.6 µH, 11.7 A
Simu­lation
Availability
–
Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-XHMI SMT Power Inductor
Inductance5.6 µH
Performance Rated Current11.7 A
Saturation Current @ 30%10.6 A
DC Resistance19.9 mΩ
Self Resonant Frequency16 MHz
–
MountSMT 
DC Resistance24.1 mΩ
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