A8299 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. The A8299 requires few external ponents, with the boost switch and pensation circuitry integrated inside of the device. A high switching...
A8299 Key Features
- Integrated boost MOSFET, current sensing, and pensation
- Stable with low-profile ceramic boost capacitors
- Adjustable LNB output current limit from 250 to 950 mA
- Boost peak current limit scales with LNBx current
- 8 programmable LNBx output voltage (DAC) levels
- LNBx overcurrent limiter with shutdown timer
- Static LNBx current limit reliably starts a wide range
- Tracking boost converter minimizes power dissipation
- LNBx transition times configurable by external capacitor
- Push-pull LNBx output stage maintains 13→18 V and