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reference designLTM4686B | Demoboard DC3089A

Analog Devices LTM4686B | Demoboard DC3089A

Ultrathin Dual 14A or Single 28A μModule Regulator With Digital Power System Management

Overview

TopologyBuck Converter
Input voltage2.7-5.75 V
Output 10.7 V / 14 A
Output 20.5 V / 14 A

Description

Demonstration circuit 3089A is a dual-output, high efficiency,high density, μModule regulator with 2.7V to 5.75V input range. Each output can supply 14A maximum load current. The demo board has a LTM4686B μModule regulator, which is a dual 14A or single 28A step-down regulator with digital power system management. Please see LTM4686B data sheet for more detailed information.DC3089A powers up to default settings and produce 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 GUI software LTpowerPlay™ onto your PC and use LTC’s I2C/SMBus/PMBus dongle DC1613A to connect to the board. 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, Fast, Analog Loops with Digital Interface for Control and Monitoring
  • Input Voltage Range: 4.5V to 5.75V Standalone, 2.375V to 5.75V with Aux 5V Bias
  • Output Voltage Range: 0.5V to 3.6V
  • ±0.5% Maximum DC Output Error Over Temperature
  • 14A DC Typical, 17A Peak Output Current, per Channel
  • ±10% Current Readback Accuracy at 10A Load
  • 400kHz PMBus-Compliant I2C Serial Interface
  • Integrated 16-Bit ΔΣ ADC
  • Supports Telemetry Polling Rates Up to 125Hz
  • Constant Frequency Current Mode Control
  • Parallel and Current Share Multiple Modules
  • All 7-Bit Slave Addresses Supported
  • Drop-In Pin-Compatible to Dual 10A LTM4686 and Dual 9A LTM4675 and Dual 13A LTM4676A and Dual 18A LTM4677
  • 16mm × 11.9mm × 1.82mm LGA Package
  • Readable Data
  • Input and Output Voltages, Currents, and Temperatures
  • Running Peak Values, Uptime, Faults and Warnings
  • Onboard EEPROM with ECC and Fault Log Record
  • Writable Data and Configurable Parameters
  • Output Voltage, Voltage Sequencing and Margining
  • Digital Soft-Start/Stop Ramp
  • OV/UV/OT, UVLO, Frequency and Phasing

Typical applications

  • System Optimization in Prototype and Production

More information

Products

Order Code
Data­sheet
Simu­lation
Downloads
Status
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C
Tol. C
VR(V (DC))
Size
Operating Temperature
DF(%)
RISO
Ceramic Type
L(mm)
W(mm)
H(mm)
Fl(mm)
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Samples
885012206109
WCAP-CSGP MLCCs 100 V(DC), 1.5 nF, ±10%
Simu­lation
Downloads7 files

EDA models: Components ZIP

CAD files ZIP

Electric models ZIP

Download all 7 files as zip archive
ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 100 V(DC)
Capacitance1.5 nF
Capacitance±10% 
Rated Voltage100 V (DC)
Size0603 
Operating Temperature -55 °C up to +125 °C
Dissipation Factor2.5 %
Insulation Resistance10 GΩ
Ceramic TypeX7R Class II 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
885012207078
WCAP-CSGP MLCCs 25 V(DC), 1 µF, ±10%
Simu­lation
Downloads8 files

EDA models: Components ZIP

CAD files ZIP

Electric models ZIP

Download all 8 files as zip archive
ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 25 V(DC)
Capacitance1 µF
Capacitance±10% 
Rated Voltage25 V (DC)
Size0805 
Operating Temperature -55 °C up to +125 °C
Dissipation Factor5 %
Insulation Resistance0.5 GΩ
Ceramic TypeX7R Class II 
Length2 mm
Width1.25 mm
Height1.25 mm
Pad Dimension0.5 mm
Packaging7" Tape & Reel