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Analog Devices LTM4678 | Demoboard DC2638A-C

LTM4678 Dual 25A or Single 50A µModule Regulator with Digital Power System Management 4x LTM4678; 200A

Overview

TopologyBuck Converter
Input voltage4.5-16 V
Output 13.3 V / 200 A

Description

Demonstration circuit 2638A-C is a high efficiency, highdensity, μModule regulator with 4.5V to 16V input range.The output voltage is adjustable from 0.5V to 3.3V, andit can supply 200A maximum load current. The demoboard has four LTM®4678 μModule® regulators, and theLTM4678 is a dual 25A or single 50A step-down regulatorwith PMBus power system management. Please seeLTM4678 data sheet for more detailed information.

Features

  • Dual Digitally Adjustable Analog Loops with Digital Interface for Control and Monitoring
  • Wide Input Voltage Range: 4.5V to 16V
  • Output Voltage Range: 0.5V to 3.4V
  • ±0.5% Maximum DC Output Error Over Temperature
  • ±3.5% Current Readback Accuracy, –20°C to 125°C
  • Sub-Milliohm DCR Current Sensing
  • 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 Up to 250A
  • 16mm × 16mm × 5.86mm CoP-BGA Package Readable Data
  • Input and Output Voltages, Currents, and Temperatures
  • Running Peak Values, Uptime, Faults and Warnings
  • Onboard EEPROM Fault Log Record Writable Data and Configurable Parameters
  • Output Voltage, Voltage Sequencing and Margining
  • Digital Soft-Start/Stop Ramp, Program Analog Loop
  • OV/UV/OT, UVLO, Frequency and Phasing

Typical applications

  • System Optimization, Characterization and Data Mining in Prototype, Production and Field Environments

Products

Order Code Data­sheet Simu­lation Downloads Product seriesL
(mm)
f
(mm)
λDom typ.
(nm)
Emitting ColorλPeak typ.
(nm)
IV typ.
(mcd)
VF typ.
(V)
Chip Technology50% typ.
(°)
PinsRowsH
(mm)
GenderTypeIR
(A)
Packaging Samples
150060SS75000SPEC
25 files WL-SMCW SMT Mono-color Chip LED Waterclear 1.6 630 Super Red 645 60 1.9 AlInGaP 140 0.7 Tape and Reel
150060GS75000SPEC
25 files WL-SMCW SMT Mono-color Chip LED Waterclear 1.6 525 Green 515 430 3.2 InGaN 140 0.7 Tape and Reel
62000311121SPEC
6 files WR-PHD 2.00 mm THT Pin Header 6 3 Single Pin Header Straight 2 Bag
702935000SPEC
3 files WA-SNSR Self-Retaining Spacer 12.7 4.8
60800213421SPEC
3 files WR-PHD 2.00 mm Jumper with Test Point 2 Jumper 3 Bag
Samples
Order Code Data­sheet Simu­lation Downloads Product seriesL
(mm)
f
(mm)
λDom typ.
(nm)
Emitting ColorλPeak typ.
(nm)
IV typ.
(mcd)
VF typ.
(V)
Chip Technology50% typ.
(°)
PinsRowsH
(mm)
GenderTypeIR
(A)
Packaging Samples