DC/DC Converter Selection Guide

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Home > Products > Custom Products > Custom Design Examples > Telecom Industry

Telecommunication Industry

Base Station Power for Cell Towers
19-72V input, 6 output channels, 115W


  • Surface Mount Technolgy
  • Low Profile
  • High Efficiency
  • High Density



Specification    
  Input Voltage Range:  19 - 72 Vdc
  Nominal Input Voltage:  24Vdc, 48Vdc
  Output Voltage: 1.8V, 2.5V, 3.3V, 5.0V, 12V, -48V
  Maximum Output Power:  115 Watts
  Efficiency (Nominal):  85%
  Size:  2.5" x 8.5" x 0.5"
(63.5mm x 216mm x 12.7mm)

Technical Issues:   Solutions:
  1. Sealed box system with no air flow
 Custom mounting plate to transfer heat to system frame
  1. 6 Outputs with limited space available
 Fine Pitch SMT design coupled with Planer Magnetics
  1. -48V Output fed from dual sources
 Unit designed to feed -48Vout from either filtered input power or internal 48V output channel
  1. Current limit required for all output channels and main input power
 Individual current limits designed for each output channel as well as main input power

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