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reference designMP8719

Monolithic Power Systems MP8719

26V, Low IQ, High Current Synchronous Buck Converter with +/-1A and Bufferd Refference Evaluation Board

Overview

TopologyBuck Converter
Input voltage4.5-26 V
Switching frequency500-700 kHz
Output 13.3 V / 12 A
IC revision1.0

Description

The EV8719-Q-00A is the evaluation board for MP8719. The MP8719 provides a complete power supply for DDR3, DDR3L, LPDDR3, and DDR4 memory with the highest power density. It integrates a high frequency synchronous rectified step-down switch mode converter (VDDQ) with a 1A sink/source LDO (VTT) and buffered low noise reference (VTTREF).Adaptive Constant-On-Time (COT) control mode provides fast transient response and eases loop stabilization. The DC auto tune loop provides good load and line regulation.The VTT LDO provides 1A sink/source current capability and requires only 22uF ceramic capacitance. The VTTREF tracks VDDQ/2 with an excellent 1% accuracy.Full protection features include OC Limit, OVP, UVP and thermal shut down and Over temperature warning (OTW).The converter requires minimum number of external components and is available in QFN 3x3 packages.

Features

 Wide 4.5V to 26V Operating Input Range

  • Compatible for IMVP8
  • 100uA low quiescent Current
  • 12A Continous Output Current
  • Selectable Ultrasonic Mode
  • Selectable 500k/700k Switching Frequency
  • Built-in +/- 1A VTTLDO
  • 1% Buffered VTTREF Output
  • Adaptive COT for Fast transient
  • DC Auto Tune Loop
  • Stable with POSCAP and Ceramic OutputCap
  • Over Temperature Warning
  • Internal Soft Start
  • Output Discharge
  • OCL, OVP, UVP, OTP
  • Latch off Reset via EN or Power Cycle

Typical applications

  • Laptop Computer
  • Distributed Power Systems
  • Networking Systems and Server

More information

Parts approved by Monolithic Power Systems

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Product series
C
Tol. C
VR(V (DC))
Size
Operating Temperature
DF(%)
RISO
Ceramic Type
L(mm)
W(mm)
H(mm)
Fl(mm)
L(µH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC(mΩ)
fres(MHz)
Material
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SamplesAvailability & Sample
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885012206095
SPECWCAP-CSGP MLCCs 50 V(DC), 100 nF, ±10%
Simu­lation
Availability
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Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 50 V(DC)
Capacitance100 nF
Capacitance±10% 
Rated Voltage50 V (DC)
Size0603 
Operating Temperature -55 °C up to +125 °C
Dissipation Factor3 %
Insulation Resistance5 GΩ
Ceramic TypeX7R Class II 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
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Packaging Unit4000 
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Packaging7" Tape & Reel 
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744311068
SPECWE-HCI SMT Flat Wire High Current Inductor, –, –
Simu­lation
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Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-HCI SMT Flat Wire High Current Inductor
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Size7040 
Operating Temperature -40 °C up to +150 °C
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Length7 mm
Width6.9 mm
Height3.8 mm
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Inductance0.68 µH
Performance Rated Current20.9 A
Saturation Current @ 10%9.5 A
Saturation Current @ 30%20 A
DC Resistance3.1 mΩ
Self Resonant Frequency105 MHz
MaterialSuperflux 
Packaging Unit1000 
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450301014042
SPECWS-SLTV THT Mini Slide Switch, Opposite Side Connection 10x2.5 mm, –, –
Simu­lation–
Availability
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Downloads6 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWS-SLTV THT Mini Slide Switch, Opposite Side Connection 10x2.5 mm
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Rated Voltage12 V (DC)
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Operating Temperature -40 °C up to +85 °C
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Insulation Resistance10000 MΩ
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Packaging Unit200 
Operation Force800 g
SchematicSPDT 
PackagingBulk 
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