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reference designLTM4700 | Demoboard DC2784A-B

Analog Devices LTM4700 | Demoboard DC2784A-B

High Current, PolyPhase Step-Down Power μModule Supply with Digital Power System Management 3×LTM4700, 300A

Overview

TopologyBuck Converter
Input voltage4.5-16 V
Switching frequency350 kHz
Output 116 V / 300 A
Output 216 V / 1 A
Output 34.5 V / 1 A
IC revision00

Description

Demonstration circuit 2784A-B is a high efficiency, highdensity, μModule regulator with 4.5V to 16V input range.The output voltage is adjustable from 0.5V to 1.8V and itcan supply 300A maximum load current. The demo boardhas three LTM®4700 μModule regulators, which is a dual50A or single 100A step-down regulator with digital powersystem management. Please see LTM4700 data sheet formore detailed information.

Features

  • Dual 50A or Single 100A Digitally Adjustable Outputs withDigital Interface for Control, Compensation and Monitoring
  • Wide Input Voltage: 4.5V to 16V
  • Output Voltage Range: 0.5V to 1.8V
  • ~90% Full Load Efficiency from 12VIN to 1VOUT at 100A
  • ±0.5% Maximum DC Output Error Over Temperature
  • ±3% Current Readback Accuracy (25°C to 125°C)
  • Integrated Input Current Sense Amplifier
  • 400kHz PMBus-Compliant I2C Serial Interface
  • Supports Telemetry Polling Rates Up to 125Hz
  • Integrated 16-Bit ΔΣ ADC
  • Constant Frequency Current Mode Control
  • Parallel and Current Share Multiple Modules
  • 15mm × 22mm × 7.87mm BGA Package
  • Input and Output Voltages, Currents, and Temperatures
  • Running Peak Values, Uptime, Faults and Warnings
  • Internal EEPROM and Fault Logging with ECC
  • Output Voltage, Voltage Sequencing and Margining
  • Digital Soft-Start/Stop Ramp
  • Optimize Analog Loop Compensation
  • OV/UV/OT, UVLO, Frequency and Phasing

Typical applications

  • Telecom, Datacom, and Storage Systems
  • System Optimization, Characterization and Data Mining in Prototype, Production and Field Environments
  • Industrial

More information

Parts approved by Analog Devices

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Product series
f(mm)
λDom typ.(nm)
Emitting Color
λPeak typ.(nm)
IV typ.(mcd)
VF typ.(V)
Chip Technology
2θ50% typ.(°)
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L(mm)
H(mm)
IR(A)
Working Voltage(V (AC))
Operating Temperature
SamplesAvailability & Sample
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150060SS75000
SPECWL-SMCW SMT Mono-color Chip LED Waterclear, –, 630 nm
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Availability
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Downloads27 files

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Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear
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Dominant Wavelength [typ.]630 nm
Emitting ColorSuper Red 
Peak Wavelength [typ.]645 nm
Luminous Intensity [typ.]60 mcd
Forward Voltage [typ.]1.9 V
Chip TechnologyAlInGaP 
Viewing Angle Phi 0° [typ.]140 °
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MountSMT 
Length1.6 mm
Height0.7 mm
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Operating Temperature -40 °C up to +85 °C
–Check availability
150060GS75000
SPECWL-SMCW SMT Mono-color Chip LED Waterclear, –, 525 nm
Simu­lation
Availability
–
Downloads27 files

RAY files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear
–
Dominant Wavelength [typ.]525 nm
Emitting ColorGreen 
Peak Wavelength [typ.]515 nm
Luminous Intensity [typ.]430 mcd
Forward Voltage [typ.]3.2 V
Chip TechnologyInGaN 
Viewing Angle Phi 0° [typ.]140 °
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–
MountSMT 
Length1.6 mm
Height0.7 mm
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–
Operating Temperature -40 °C up to +85 °C
–Check availability
702935000
SPECWA-SNSR Self-Retaining Spacer, 4.8 mm, –
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Availability
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Downloads3 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWA-SNSR Self-Retaining Spacer
Drilling in Panel4.8 mm
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Length12.7 mm
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Operating Temperature -30 °C up to +85 °C
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60800213421
SPECWR-PHD Jumper, –, –
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Availability
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Downloads3 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWR-PHD Jumper
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Pins2 
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Rated Current3 A
Working Voltage200 V (AC)
Operating Temperature -25 °C up to +105 °C
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62000311121
SPECWR-PHD Pin Header, –, –
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Availability
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Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header
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Pins3 
TypeStraight 
MountTHT 
Length6 mm
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Rated Current2 A
Working Voltage200 V (AC)
Operating Temperature -40 °C up to +105 °C
–Check availability