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A8299 - Dual LNB Supply and Control Voltage Regulator

General Description

Intended for analog and digital satellite receivers, this dual low noise block converter regulator (LNBR) is a monolithic linear and switching voltage regulator, specifically designed to provide the power and the interface signals to an LNB down converter via coaxial cable.

Key Features

  • Integrated boost MOSFET, current sensing, and compensation.
  • Stable with low-profile ceramic boost capacitors.
  • Adjustable LNB output current limit from 250 to 950 mA ▫ Covers wide array of.

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A8299 Dual LNB Supply and Control Voltage Regulator FEATURES AND BENEFITS ▪ Integrated boost MOSFET, current sensing, and compensation ▪ Stable with low-profile ceramic boost capacitors ▪ Adjustable LNB output current limit from 250 to 950 mA ▫ Covers wide array of application requirements ▫ Minimizes component sizing to fit each application ▫ For startup, reconfiguration, and continuous output (maximum value depends on PCB thermal design) ▪ Boost peak current limit scales with LNBx current limit setting ▪ 8 programmable LNBx output voltage (DAC) levels ▪ LNBx overcurrent limiter with shutdown timer ▪ Static LNBx current limit reliably starts a wide range of loads ▪ Tracking boost converter minimizes power dissipation ▪ LNBx transition times configurable by external capacitor ▪ Push-pull