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reference designLTM4655 | Demoboard DC2898A

Analog Devices LTM4655 | Demoboard DC2898A

Low EMI Dual 13V to 40VIN, 12V/4AOUT μModule Regulator

Overview

TopologyBuck Converter
Input voltage13-40 V
Output 112 V / 4 A

Description

Demonstration circuit 2898A is a dual DC/DC converter with a 13V to 40V input voltage range, two 12V outputs at 4A each featuring the LTM®4655. The LTM4655 is a EN55022B compliant 40V, dual 4A or single 8A step-down or 50W inverting DC/DC μModule® regulator.The switching frequencies of both channels are set at 1.2MHz on DC2898A. If the output voltage collapses sufficiently due to an overload or short-circuit condition,the internal oscillator will fold back to one-fifth of the LTM4655’s programmed switching frequency, protecting the power switch from damage.

Features

  • Dual 4A/Single 8A Low EMI Switch Mode Power Supply n EN55022 Class B Compliant
  • Two Fully Independent Channels, Each Configurable for Positive or Negative Output Voltage Polarity
  • Output Voltage Range: 0.5V ≤ |VOUTn+ – VOUTn–| ≤ 26.5V
  • Wide Input Voltage Range: Up to 40V
  • 3.1V or 3.6V Start-Up, Configuration-Dependent
  • ±1.67% Total DC Output Voltage Error Over Line, Load and Temperature
  • Analog Output Current Indicator (Positive-VOUT Only)
  • LDOOUT: 5V Fixed, 25mA Capable LDO n Parallelable with LTM4651/LTM4653
  • Constant-Frequency Current Mode Control
  • Power Good Indicators and Programmable Soft-Start
  • Overcurrent and Overtemperature Protection
  • 16mm × 16mm × 5.01mm BGA Package

Typical applications

  • Video, Imaging and Instrumentation
  • Automated Test and Measurement , Industrial Control System
  • Avionics

More information

Products

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60800213421
SPECWR-PHD Jumper, 2, –
Availability
–
Downloads3 files

Status Activei| Production 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
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62000821121
SPECWR-PHD Pin Header, 8, Straight
Availability
–
Downloads7 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header
Pins8 
TypeStraight 
MountTHT 
Length8 mm
Rated Current2 A
Working Voltage200 V (AC)
Operating Temperature -40 °C up to +105 °C
–Check availability