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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