IC reference design search
IC manufacturers Analog Devices

IC manufacturers (107)

reference designLTM4700 | Demoboard DC2784B-A

Analog Devices LTM4700 | Demoboard DC2784B-A

High Current, PolyPhase® Step-Down Power μModule Supply with Digital Power System Management 2 × LTM4700, 200A

Overview

TopologyBuck Converter
Input voltage4.5-16 V
Output 11.8 V / 200 A

Description

Demonstration circuit 2784B-A is a high efficiency, high density, μModule® regulator with 4.5V to 16V input range. The output voltage is adjustable from 0.5V to 1.8V and it can supply 200A maximum load current. The demo board has two LTM®4700 μModule regulators, which is a dual 50A or single 100A step-down regulator with digital power system management. See LTM4700 data sheet for more detailed information.The DC2784B-A powers up to default settings and produces power based on configuration resistors without the need for any serial bus communication. This allows easy evaluation of the DC/DC converter. To fully explore the extensive power system management features of the part, download the graphical user interface (GUI) software LTpowerPlay® onto your PC and use Analog Devices I2C/SMBus/PMBus dongle DC1613A to connect to the board. The LTpowerPlay allows the user to reconfigure the part on-the-fly and store the configuration in EEPROM, view telemetry of voltage, current, temperature, and fault status.

Features

  • Dual 50A or Single 100A Digitally Adjustable Outputs with Digital 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 ∆Σ ADC
  • Constant Frequency Current Mode Control
  • Parallel and Current Share Multiple Modules
  • 15mm × 22mm × 7.87mm BGA Package
  • Readable Data:
  • Input and Output Voltages, Currents, and Temperatures
  • Running Peak Values, Uptime, Faults and Warnings
  • Internal EEPROM and Fault Logging with ECC
  • Writable Data and Configurable Parameters:
  • 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
  • Storage Systems

More information

Parts approved by Analog Devices

Log in now to view availability and request availability forecasts. LOGIN
Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
f(mm)
λDom typ.(nm)
Emitting Color
λPeak typ.(nm)
IV typ.(mcd)
VF typ.(V)
Chip Technology
2θ50% typ.(°)
Pins
Type
Mount
L(mm)
H(mm)
IR(A)
Working Voltage(V (AC))
Operating Temperature
SamplesAvailability & Sample
Log in now to view availability and request availability forecasts. LOGIN
150060SS75000
SPECWL-SMCW SMT Mono-color Chip LED Waterclear, –, 630 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.]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 °
–
–
MountSMT 
Length1.6 mm
Height0.7 mm
–
–
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 °
–
–
MountSMT 
Length1.6 mm
Height0.7 mm
–
–
Operating Temperature -40 °C up to +85 °C
–Check availability
702935000
SPECWA-SNSR Self-Retaining Spacer, 4.8 mm, –
Simu­lation–
Availability
–
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
–
–
–
–
–
–
–
–
–
–
Length12.7 mm
–
–
–
Operating Temperature -30 °C up to +85 °C
–Check availability
60800213421
SPECWR-PHD Jumper, –, –
Simu­lation–
Availability
–
Downloads3 files

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

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