- Design Center
- About Allegro
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 components, with the boost switch and compensation circuitry integrated inside of the device. A high switching frequency is chosen to minimize the size of the passive filtering components, further assisting in cost reduction. The high levels of component integration ensure extremely low noise and ripple figures.
The A8299 has been designed for high efficiency, utilizing the Allegro advanced BCD process. The integrated boost switch has been optimized to minimize both switching and static losses. To further enhance efficiency, the voltage drop across the tracking regulator has been minimized.
For DiSEqC™ communications, a tone control pin is provided to gate the internally-generated 22 kHz tone on-and-off. A comprehensive set of fault registers are provided, which comply with all the common standards, including: overcurrent, thermal shutdown, undervoltage, and power not good.
The device uses a 2-wire bidirectional serial interface, compatible with the I2C™ standard, that operates up to 400 kHz.
The A8299 is supplied in a lead (Pb) free package.
This device is in production, however, it has been deemed Pre-End of Life. The product is approaching end of life. Within a minimum of 6 months, the device will enter its final, Last Time Buy, order phase. Date of status change: December 5, 2018
Recommended Substitutions: Contact Allegro Sales
|Part Number||Package Type||Temperature||RoHS
|Part Composition /
|A8299SETTR-T||28-lead QFN||-20°C to 85°C||Yes||View Data||pre-EOL||Contact your
local sales rep
|APEK8299SET-01-MH||DEMO BOARD||-20°C to 85°C||No||--||pre-EOL||Contact your
local sales rep